AAC

cked
Inter lo s
Block
Panels
AAC Blocks
s
Arche
s
AAC
Lintel

s
Hordy
Block Slabs
 NIC Products

Interlock &
Yard Tiles

LED Limestone Cement

Lights Plastics Cladding
Bricks

White Ready Mix Dry Mortar

Blocks

Cladding Benches Paints

Materials & Flower Ceramics
Pots

HDPE NI Panels Concrete

Pipes
AAC PRODUCTS
100<L<600 cm
60 cm

20cm

20cm
Slabs 60cm Blocks
20cm
100<L<400 cm 60 cm

60cm

100<L<300 cm
Arches Products of White Blocks have become the ideal
20cm
choice for construction in Kuwait and the neighboring
100<L<400 cm
countries since it has started production in 1983.
This product has got the approval of all the official
bodies in Kuwait like Ministry of Energy, the General
30cm

Establishment of Housing Care and many other

official bodies in the Gulf region.
The scientific research has proved in Europe,
Lintels 20cm 10cm
Kuwait and the GCC countries for many years that
20cm the white blocks have maintained its high quality
?? cm and its distinctive level among other alternative
construction materials.
40cm
?? cm

The properties of this product may be characterized

in its high insulation quality, easiness and speed in
?? cm the construction works and cost effectiveness.
20cm
Custom Dimensions Hordi

1
 Light Insulation Blocks
Light Insulation Blocks features makes it the most suitable choice for construction. Which are as follows:

1. Thermal Insulation
Insulation plays an important role in minimizing the costs of heating or air conditioning and it can help
R1 R5
in extending the life span of the air conditioning system without the need for other insulation materials,
To
knowing that the thermal insulation is inversely proportional to the density; i.e., whenever the density
R4 decreases, the thermal insulation increases. However, if the density becomes more than 500 kg/ m3, the
effective thermal insulation does not happen as per the standards of the Ministry of Electricity and Water.

Density: 480 kg/m3 Thermal Insulation: 0.91 Btu/ft2.hr.fº

2. High Endurance
Undoubtedly, light insulation block is considered to be a very strong material which matches most of the
Ti
required engineering specifications. It undergoes many continuous control tests to ensure it can withstand
R2
the utmost pressure forces so that it can be used with both load bearing walls and non-load bearing walls.
2 cm
20 cm Load Bearing: 30-40 kg/cm2
24 cm

2
 U VALUE Heat Transfer Coefficient For NIC (AAC Elements )

SINGLE WALL OF AAC Light Block WITH INTERNAL AND EXTERNAL PLASTERING
Density Th.Conductivity Thickness Th. Resistance TOTAL

Ext plastering

Int. plastering

transmittance
blocks wall

blocks wall

blocks wall

resistance
plastering

plastering

plastering

plastering

plastering
plastering
External

External

External

Thermal

Thermal
Internal

Internal

Internal
AAC

AAC

AAC
AAC

Y1 Y2 Y3 K1 K2 K3 t1 t2 t3 R1 R2 R3 R U
Btu/
kg/m3 Btu.in/ft2.hFo m ft2hFo/ Btu ft2hFo/ Btu
ft2hFo
1650 450 1650 3.93 0.88 3.93 0.02 0.20 0.02 0.20 8.99 0.20 10.36 0.096
1650 480 1650 3.93 0.91 3.93 0.02 0.20 0.02 0.20 8.66 0.20 10.03 0.100
1650 550 1650 3.93 0.99 3.93 0.02 0.22 0.02 0.20 8.72 0.20 10.10 0.099

1650 600 1650 3.93 1.06 3.93 0.02 0.24 0.02 0.20 8.94 0.20 10.32 0.097

WALL OF SAND LIME BRICKS AND AAC Light Block WITH INTERNAL PLASTERING

Density Th. Conductivity Thickness Th. Resistance Total

Int .Plastering

transmittance
blocks wall

blocks wall

blocks wall

resistance

Thickness
Sand lime

Sand lime

Sand lime
plastering

plastering

plastering
S LB wall
brick wall

brick wall

brick wall

Thermal

Thermal
Internal

Internal

Internal

Weight

of wall
AAC

AAC

AAC
AAC

Y1 Y2 Y3 K1 K2 K3 t1 t2 t3 R1 R2 R3 W R U t

ft hFo/
2
Btu/
kg/m3 Btu.in/ft2.hFo m ft2hFo/Btu kg/m2 m
Btu ft2hFo
1793 450 1650 4.69 0.88 3.93 0.108 0.20 0.02 0.906 8.99 0.20 317 11.07 0.090 0.328
1793 500 1650 4.69 0.93 3.93 0.108 0.20 0.02 0.906 8.44 0.20 327 10.52 0.095 0.328
1793 550 1650 4.69 0.99 3.93 0.108 0.20 0.02 0.91 7.93 0.20 337 10.01 0.100 0.328
1793 600 1650 4.69 1.06 3.93 0.108 0.20 0.02 0.91 7.45 0.20 347 9.53 0.105 0.328

3
 3. Reduce Concrete Load
The weight of the light insulation blocks is third the weight of the normal
cement blocks. That is why it is considered easier to carry and install
in comparison with the installation of the traditional building blocks. Its
light weight also helps in reducing the need for using other equipment
normally used in construction works, this may decrease the costs, the
area, and the required time for finishing the construction works.
The company manufactures the light insulation blocks in different
densities, weights, sizes and models as per the client's needs.
In order to get the best of this product, the density should be checked
before the purchase order is made.

4. Fire Resistance
The light Insulation blocks are made of anti-inflammable materials so
that no poisonous fumes shall be released even if they were immediately
exposed to fire.
100mm-thickness light insulation wall may prevent flames from spreading
5. Economic, easy and quick to install
to other parts of the building for a period of four (4) hours. The high
Building with light insulation blocks is considered faster than using other
thermal insulation coefficient limits high temperature within the fire area
alternatives. One 60x20x20 cm piece of this kind of block gives the same
and prevents it from damaging other areas of the building.
area which needs 1.5 of the normal cement block of size 40x20x20 cm.
When using the light insulation blocks, we can reduce the need for any
Fire Rating: Fire Rating:
additional materials which were usually used with the ordinary blocks.
Load bearing walls Non-Load bearing walls
In comparing the time and the materials required for building with the
white blocks and not with cement blocks, we find out that the white block
Mins 30 60 90 120 180 30 120 240 >240 >240
represents a revolution in construction because of the time and cost it
saves, the high quality it provides and the accuracy of dimensions.
MM 150 175 200 240 300 50 100 150 200 250

According to (DIN 4102)

4
6. Easy To Cut and Form
The light white blocks are easy to cut with accurate dimensions by using the
simple saw without damaging the block itself. (You can buy the saw from
the company.) You can easily and accurately
make the required electrical connections and
sewage by using simple tools.

7. Slight Absorption of Moisture

The light insulation blocks contain small air
gaps which lessens the absorption of moisture
until it becomes very low in comparison with
the any other building materials.
It is also made of bio-insoluble materials that do not rot or attract moisture
which allows for its inside to remain clean.
8. Accurate Dimensions
Moisture Absorption % Moisture Diffusion % White blocks are manufactured in accurate correct measures which
By Volume By Volume facilitates the leveling from the very beginning.

Exposure Sand Light Exposure Sand Light No. Product Width (cm) Height (cm) Length (cm)
Time Hrs. Cement Weight Time Hrs. Cement Weight 20 20 60
1. Block
1 15.9 3.7 2 6.1 2.3 (5-10-15-25-30) (25-30-40-50-60) (20-30-60)
4 19.8 4.8 12 13.4 10.4 24 40 60
2. Hordy
(20-30) (20-60) (50-60)
48 22.3 11.1 48 17.8 20.9 20 30 L
3. Lintel
120 23.4 17.0 96 19.12 26.2 (10-15-25-30) (20-25-30) 100 < L < 400
The following table shows the declared value of water absorption rate 20 L
4. Arch 60
(15) 100 < L < 400
CWs of AAC produced by the National Industries Company, according to
20 L
the standard (GSO EN 771-4 2011): 5. Slab 60
(10-15-25-30) 100 < L < 600
20 L
CWs (After 10 min) CWs (After 30 min) CWs (After 90 min) 6. Panel 60
(10-15-25-30) 100 < L < 300
280 g/m .s
2 0.5
240 g/m .s
2 0.5
220 g/m .s
2 0.5
* The white blocks may be manufactured in other measures.

5
 9.ِ Easy for electrical and sanitary installations The Production Process
It is easy to make grooves in the insulation blocks The production process of the light insulation blocks is controlled
to make the electrical and sewage links, knowing automatically by computer. The resulting product would be of a high
that the digging equipment is available at the quality. All the steps of production are considered environment friendly
company. because the used materials are natural. The remaining materials before
or after cooking (the final product) are recycled later in other stages of
production.
10.ِ For Hollow Ceilings
The light insulation blocks are used easily in the Blocks with special specifications
hollow ceilings because of its light weight and AAC Light Block - normal and interlock forms - can also be produced
insulation feature. with special specifications, with a density of 600 kg/m3, easy to cut and
reshape, lighter weight than ordinary concrete bricks, and has high
durability with Compressive Strength up to 5.0 N/mm2
11. Low Coefficient of Contraction and Expansion The following table shows a comparison of AAC Light Block with a density
The light insulation blocks are characterized by of 480 kg/m3 and 600 kg/m3 according to the German standard DIN 4165
the least difference between the contraction and and American ASTM C-518
expansion which is 0.3mm for each meter length
under the natural conditions.
Specification 480 kg/m3 600 kg/m3
Gypsum
Cement Strength Class (DIN 4165) 2 4

Lime Compressive Strength

2.5 N/mm2 5.0 N/mm2
(DIN 4165) Min. Value
Sand

Density Class (DIN 4165) 450-500 kg/m3 550-600 kg/m3

Thermal Conductivity
0.91 btu.in/ft2 h.fº. 0.98 btu.in/ft2 h.fº.
(ASTM C-518) Max. Value

6
Comparison between the White Insulation Blocks and the Normal Cement Blocks

no. Specification White Insulation Blocks Regular Cement Block

Main Portland Cement, Dehydrated Lime, Fine Sand, Gypsum,

1 Portland Cement, Sand, Aggregate, Water
Components Aluminum Powder, Water

Mixing is made by using automatic mixers working according

to the German Standards, inside 5.4 m3 iron molds, lubricated Mixing is made manually or by using ordinary mixers. It
with special oils to prevent the elements to stick together. On does not lead to any reactions similar to what happens to
2 Mixing Stages
interaction between the components, Hydrogen gas comes the components of the light blocks. That is why its weight
out leaving air gaps inside, which grants AAC Light Blocks remains heavy.
their insulation and light weight properties.

Cutting is performed by using the hydraulic system and metal There is no cutting process because the mixture is poured
3 Cutting Stage sharp wires of special kind. After 4 to 5 hours of starting the inside moulds according to the standard size of blocks or by
mixing. They are designed as per the required dimensions. using the pressure system immediately after mixing.

Treatment is done by vapor inside caldron under 16 bar

pressure for a period of about 8-12 hours where Calcium Acid, Treatment is done by heating under temperature of 40 degree
Leveling or Aluminum powder and Silica react together with the presence centigrade or with water for three days. The product becomes
4
Treatment Stage of water vapor. Calcium Aluminum Silica is composed which solid after 28 days of the mixing stage. It is not used in building
gives the blocks its white color and the strength so that it may unless after it becomes solid.
be immediately used in building after the cooking process.

The Use as
5 It is used and insulation at the same time. It is used only as Masonary Block
Masonary Blocks

The Size of White One piece of white block equals the size of three pieces of
6 Three pieces of cement block equal one piece of white block.
Blocks Cement block.

7
 no. Specification White Insulation Blocks Regular Cement Block

Special Adhesive material is used for this kind of blocks which

The usual material of sand and cement is used randomly. It is
contains sand, cement and adhesive elements in addition to
The Construction stuffed with high thickness to be enough for the cement block
7 other materials which maintain the value of insulation. It is
Material to stick together. This means it is used and built with huge
stuffed in maximum 2 mm thickness. This means that one sac
amounts and needs continuous water spraying for three days.
shall be enough to build 2.5 m3.

The outside coating can be easily done after fixing the metal
Coating the
net whereas the inside coating can be done without the need The metal net should be fixed for the inside and outside
Lime Blocks,
for this metal net but only with concrete or cement dividers. It coating. In case of the lime blocks or decorative stones, it
8 Décor Works
is very easy to fix the lime brick the décor brick and stones usually needs a mechanic fixing and the use of ordinary filler
and Decorative
by special adhesive filler with the least thickness. Sometimes, with high thickness.
Stones
there is no need for mechanic fixtures.

It needs extra workers because of its heavy weight. It also

Very quick and because of its big sizes and light weight, it
Time for Building needs lifts to move it, in addition for the need for other workers
9 needs less workers or lifts and the time needed for finishing
and Applyingc to prepare the fillers which are used in huge amounts and big
the work is faster than any other alternative.
thickness. It also needs spraying with water for three days.

The Priority of
It is preferred for any other alternatives because of its light It is difficult to be used in high buildings because of its heavy
10 Using in High
weight and easiness of handling. weight.
Buildings

Because of its light weight, it is best to be used when the

Using in the It cannot be used in concrete mixes as an alternative to Hordy
11 distance between the concrete pillars is wide; it is called Hordy
Concrete Mix because of its heavy weight.
Light Block.

8
no. Specification White Insulation Blocks Regular Cement Block

The production of slabs, light tiles which are reinforced and

Because it is poured on site in the traditional way, it does not
insulated from the same material of blocks is easy to hold and
have specifications. Sometimes, reinforced untreated steel
install and does not need a long time for production. Production
Reinforced is used with it which leads to weak slab and its breakage. It
12 may be done in 24 hours. The tiles may be considered an
Elements needs time for spraying with water daily. It needs a crane to
alternative to the ready concrete and contains treated steel
move it to the upper floors. It is difficult to make ready blocks
against corrosion and rust made as per the German Standard
as an alternative to ready concrete.
Specifications.

Insulation of For leveling the roof which is made of light ready blocks, it is Because of the waves of the ready concrete, there may be a
13 Roves against easy to use the “NIC” insulation material used for roves with need to apply the "Screed" material for leveling the roof and
Water the paste immediately after installation. apply the water insulation as per the installation specifications.

Because of its heavy weight and it causes a load on the

The total cost of It does not form a load on the columns and base because of
foundations and the columns, there is no way to eliminate
the construction its light weight. Consequently, it is advised to lessen the use
the amount of reinforced iron and cement in the concrete
14 including the of concrete and iron in designing the concrete columns and
pillars and the foundations. It is advised to use the reinforced
bases and the the foundations. It is also advised to apply the reinforced light
concrete. That is why it is more expensive than the new system
buildings blocks as an alternative to the ready concrete.
of the light blocks, slabs and tiles.

Because of its light weight, packing it in piles and fixing it on

wooden bases that can be easy to be moved with cranes or
Method of It is packed and loaded manually because it is heavy and
lifts to any place without being broken is easy. It is produced
15 Loading and its cannot be easy to tie with ropes. It is also difficult to move
in two densities: the lessor is used outside and the more is
Density from one place to another. It is produced in one density only.
used internally because of the adverse relationship between
the thermal insulation and the density.

- The density and breaking force of the white block are as per the German standard specification DIN-4165 .
- The thermal conductivity is as per the American Standard Specification ASTMC-518.

9
 The Method of Building Walls Using the White Blocks

Clean the area where you want to build 1 6

the wall. Level the spaces using cement

Apply mortar to the sides with applying
filler of at least 1 cm as per the technical
side pressure so that the two pieces
principles. Install the first piece of Block
would stick together.
and level it so that it is completely
horizontal.
2 7
The “NIC’s” glue mortar is added to the
The rest of the spaces are leveled with
last part of the second row and to the
cement filler. Install the other Block and
side of the last piece. The next rows
level it so that it is completely horizontal
are built in the same steps as per the
as per the previous stage.
previous stages.

3 8
In case you build any partitions, follow
Take the required measurements to the same steps of filling and building the
make halves to complete building the wall until you finish the partition. Then, the
second row and so on. partitions are fixed to the wall using steel
connections as you see in the picture.

4 9

The white block can be cut as per In case of building walls without columns
the required measures by using the in the angles, plates of steel nets are
special saw. installed.

5 10

The Glue Mortar is then added on the The height of the wall should not be more
block to make the second row with than 2 meters per day. Reinforced slab is
leveling to ensure the wall is completely made at the middle of the wall if its height
vertical. exceeds 3½ meters.

10
Preparing the Glue Mortarfor
the Construction Works Tongue and
The special Glue Mortar is made in our factories where Grove
it contains chemical additives to improve the strength of
adhesion. It is available in sacs of 40 kg which is enough
to cover an area of 10 square meters per each sac.

It follows the same

family of white block.
Its density is 480 kg/m3
with similar breakage
mix NIC Glue Mortar force for the same
with water in 2.5%. density and standard
dimensions of 60x20x20
and 60x20x15.
Other dimensions may
be produced upon
request.
Reinforced
The main goal of Light Panels
producing this kind of It is used for the inside partitions or for
Mix well to be block is to eliminate the coating the outside walls. It is available in
ready for use. used amount of glue many sizes ranging between 100x60x10
mortar which is usually and 300x60x10. It is made of the same
used in construction. materials of the reinforced light blocks but
the reinforced steel is used in less amounts
because it does not bear the same loads
as the blocks.

11
 Reinforced Roof Slabs
The reinforced Roof Slabs are used for different kinds of roofs as an
alternative to the reinforced concrete casted onsite, due its light weight and
being ready made, It can be also used for the floorings and to the extra floors
above the current houses, the open halls and otherwise.

1. Defining the Dimensions and Engineering Measurements of Panels

NIC reinforced light roof panels are produced in 20 and 25 cm depth, 60 cm
width and 1 – 6 m lengths. Its density ranges between 500 – 700 kg/ m2.
These panels contain reinforcing steel which is made of 2 reinforcing iron
nets coated with anti-corrosion layer of different diameters (12 mm, 8 mm).

2. The Advantages of the Reinforced NIC Roof Panels

The reinforced light roof slabs are considered of the important and necessary
products which have the following characteristics:
a) Light weight and Ready
The most important feature is its light weight as its density equals 600 kg/m3.
b) Heat Insulation
NIC Reinforced Light Roof Slabs are made of the same material of the
insulation light white block. Then, it also insulates heat and resists fire.
c) The Speed in Ending Works
NIC Reinforced Light Roof Slabs are installed onsite in one or two days
maximum. Construction may be then continued above them with doing the
finishing immediately underneath them. This save the long time spent in the
traditional method of building the concrete roofs which ranges between 20
to 30 days.
d) High Endurance
NIC Reinforced Light Roof Slabs are reinforced with two nets of reinforcing
iron (8, 12) mm. It can bear big loads which are counted as per the plans of
the project.
e) Clean upon Installation
NIC Reinforced Light Roof Slabs are considered environment friendly products
because no remains are left behind when it is made and installed onsite.

12
f) The steel used in the slabs during manufacturing or installation 5. Method of Installation
is treated against corrosion. • After finishing the main body of the building ( columns, frames and
g) NIC Reinforced Light Roof Slabs are free of minor cracks. the block walls), the company sends a specialized technician to
supervise work during the construction of the skeleton and to give its
3. Some projects which were executed using the reinforced roof
remarks which will be of benefit later on when installing the slabs
slab system
• The technician takes all the measurements of the locations where
The company has executed many houses and projects using this system.
installation of light slab is needed.
Some of them for example are:
• The installation is made by installing the slab beside each other where
- The construction and accomplishment of Female High School at
it leans on the frames or the block as per its dimensions.
Mishref.
• After finishing the required area, steel rods are fixed inside the upper
- Many mosques for Ministry of Awqaf
spaces (5x7) cm where the slab meet, leaving a steel wire for the
- Many houses at different locations in Kuwait
required decorations. Then, the spaces are filled with concrete and
- Sheikh Jabr Ahmed Sabah Hospital, West Serrah.
this is when the installation works end.
4. A comparison between the NIC Roof slab the traditional reinforced AAC
Blocks Steel Rod
concrete blocks

No. The Reinforced Blocks for Roves The Reinforced Concrete Blocks

1
Ready and light weight. Heavy and coated onsite. steel
Density = 600 kg/m3 Density = 2500 kg/m3 wire for
Decoration

2
Easy to lift and install within one It is executed within 20 -30 days 60 cm
Wall
or two days
Finishing cannot be resumed
Works and finishing can be
3 unless the wooden tie is
resumed immediately. loosened.
4 Thermal insulation Does not insulate heat.
The used steel may not be
The used steel is treated
5 treated against corrosion and
against corrosion. rust.
Concrete remains accumulate
6 Clean upon installation. onsite when coated the molds.
It does not contain minor
7 Minor cracks may happen to it.
cracks.

8
It does not need time to spray It needs treatment with water
water after installation. immediately after pouring.

13
 6. The Steps of Installing the Reinforced Roof Slabs

1 2 3 4

Easy to transport Iron skeleton before installation in wide buildings Lifting the slabs to be installed Install the slab adjacent to each other.

5 6 7

Install the slabs close to each other near the edge of the rib to form letter (U). Make a circular rib from the outside of the slabs Install a reinforced steel net of 8 mm diameter
to tie them (optional).

8 9 12 The building after the final finishing.

Cast a concrete layer of maximum 7 cm thickness Install a reinforced steel net of 8 mm diameter
(optional). (optional).

10 11

The look of slabs after installation. The building upon installing the slabs

14
 Data Sheet for A.A.C Slabs
Height
AAC SLABS
10 cm 15 cm 20 cm 25 cm 30 cm

Width of Slab b cm Width = 60 cm

Design Density For Dead Load of AAC Slab ydl kg/m3 Design Density For Dead Load = 670

Width of Groove For Slab bg cm 4 4 4 4 4

Height of Slab h cm 10 15 20 25 30

Compressive Strength of AAC Slabs f’c kg/cm2 50 50 50 50 50

Yield Strength of Steel = fy ,max. fy = 1800 kg/cm2 fy kg/cm2 1800 1800 1800 1800 1800

Modulus of Elasticity for Steel Es kg/cm2 2,000,000 2,000,000 2,000,000 2,000,000 2,000,000

Modulus of Elasticiry for AAC = ( y )1.25. ( f’c )0.42 Eac kg/cm2 12,541 12,541 12,541 12,541 12,541

Dead Load = D.L. = ydl . h D.L kg/m2 67 100 134 167 201

Live Load = L.L L.L kg/m2 200 200 200 200 200

Permissible Length of Slab Lper CM 2.05 3.50 5.68 5.96 6.36

Esign Method of AAC Slab Act. Def Shear Act. Def Shear Shear

**Note: The final structure should be approved by the manufacturer. A/C Opening
Slab Fixing Span over 6 meter with Clamping

15
 Lintels and Arches • The reinforcement iron is formed in the reinforcement iron unit in the
form of letter (U).
For a complete thermal insulation in • Steel is treated against rust and coated with a protective material.
a white block building system and to • Steel is entered into the cellular concrete mix after being ready.
avoid the heat leakage resulting from • Lintels are cut according to the required measures using the cutting
using the traditional concrete lintels, wires.
National Industries Company has • Lintels are cured with steam for at least 14 hours.
produced the reinforced light lintels • The stamp of quality control is printed with the arrow heading up on
for the upper parts of the doors and both sides of the Lintel.
windows. • Lintels are transported to storage area.
Whereas the traditional concrete
lintels need a lot of work of carpentry, The Task of the Lintel
furnishing and reinforcement and a • Covering the inside and
long time of waiting to disassemble outside openings of doors
the wood, “NIC” lintels represent and windows in all their forms.
the ideal alternative. It is made • It can be used for sun shades
of the same material as the white and decorations.
block and reinforced according to Installing the Lintels in Special
the German standard specifications Cases:
DIN4223 with reinforcing steel • When covering the outside
chemically treated against rust. It is walls with a layer of sand lime
also coated with special materials to bricks and to cover the face
keep it from the surrounding factors of the slab, a metal fixture
and materials which make it a high should be put along the lintel
quality product. It can be produced using special nails to prevent the side movement of the angle. Sand
in arches as well. Lime Bricks are installed on the metal angle.
• When there is a reinforced concrete column close to the opening of
The Technology of Making Lintels: the lintel, a metal angle is fixed on the column using special screws.
• The production of lintels is fully automated. Lintel are made of cellular These screws withstand the total cutting force and the tension force
concrete mix which contains the reinforced iron which is treated as generated by the bending torque resulting from the decentralization.
per the international standards. The stages of production of lintel are The metal angle holds the lintel and the wall built on.
as follows:

16
The Conditions of Installing the Lintel width x Height 15x30 20x30 15x30 20x30
Span (cm)
• The damaged lintels are not used. Length Weight (kg) Allowable Loads (kg/m)
140 42 55 1390 2870 105
• The track of the lintel should not exceed three quarters of its length.
190 56 75 750 1560 143
• The net track of the lintel should not exceed the maximum length of 240 71 95 470 970 180
3 meters. 290 86 115 320 670 218

• Make the leaning spaces from both sides. Shutter- Space Lintels
• Abide by the leaning distance of the lintel from both sides in order to The company provides special lintels to make the shutter spaces above
be minimum 15 cm. doors and windows as per the required specifications.
• Make the leaning space of the lintel from both sides full of Glue Mortar.
• Make the arrow painted on the lintel heading up.
• Balance the lintel and make sure its upper face is horizontal.
• Do not cut “NIC” lintels before getting an approval.
• The outside lintels should be protected from rain.
• When you need consultation concerning installation, please call us.

The Advantages of “NIC” Lintels:

Comparison between “NIC” Lintels and Lintels Made Onsite
• The lintel is hold by hand and does not need special lifting machines.
‘NIC’ Lintels Lintels Custed Onsite
• It saves time because you can resume building immediately above it
Poured onsite, heavy and load
without stoppage. Ready, light and load resistant. resistant.
• It does not need leaning tools and there is no need to wait for the It needs many stages to be made:
Easy to lift and install. It can be
concrete to be solid. installed in 5 minutes as follows: - Install the mould with forming
- Move the lintel to its place. and putting steel
• It has a unified world system to protect it from rust and the outside - Pour concrete and water it
- Provide cement to where it is
factors. daily.
going to be installed. - Wait for it to be solid and then
• The lintels may be coated with any of the available coating systems. - install the lintel and level it. remove the mold.
• It can be restored using the ”NIC” Glue Mortar or the normal concrete. You can resume building above it You cannot build above it until after
without stoppage. approximately one week.
• It can resist the approved distributed loads.
Thermal insulation and fire It does insulate heat and may be
• Its maximum bent is less than the allowed one. resistant. affected by fire.
The used steel is treated using The iron may not be treated and
a unified system against rust may rust or corrode which leads
and corrosion. It is coated with to damage the lintel after a short
a material to protect it from the period of being used.
environmental conditions.
Does not contain minor cracks. Minor cracks may happen.
It delays construction works and it
Saves time and it is economic. is expensive.
Arches Lintels

17
 Economic
It is more economic than other slabs of more than 5 meter length and the routine
live loads. It decreases the overall cost of construction by decreasing the amount
of concrete and the reinforcement of pillars and foundations. Hordy installation
saves time.

Light Weight
Because the Hordy Slabs 300 is light and bears loads, the Hordy slabs with the
block contribute in resisting the design loads.
The Hordy Slabs are lifted to the roof by using a suitable crane or manually. It can
be cut by the normal saw. Installing the electrical or sewage links is easier and
safer. It can be coated with any one of the available coating systems because
its surface is straight from the bottom and there are no ribs suspending from it.

The Standard Types of Hordy Slabs 300

Hordy Blocks 300 The height of the Hordy Slabs is chosen as per the requirements of the heat
and noise insulation and fire resistance whereas its length is chosen as per the
The Properties of the ribbed slabs by using the Hordy Blocks 300
constructive design of the tiles of the ceiling.
The ceiling of the ribbed slabs is made of regular ribs of reinforced
concrete with equal spaces which contain the Hordy blocks made of The Standard Dimensions of the Hordy Slabs 300
light concrete with upper reinforced concrete block. Length Width Height
The ribbed slabs by using the light Hordy Blocks 300 have the following 40.50 cm 20.30 cm 20.25.30 cm
properties:
Other types and dimensions of Hordy are also produced with different densities
Fire Resistant upon request.
It does not generate poisonous fumes with high temperatures or
The Stages of Making the Ribbed Slabs By Using the Hordy Slabs 300
burning. 20, 30 cm 20, 2
• Install the wooden mould. Make sure its surface 5, 30
cm

Thermal Insulation is straight and stable and it is solid and clean.

As per the requirements of the Ministry of Electricity and Water. • Put the ribbed reinforcement steel and beams
The thermal transmission coefficient of the ceiling does not exceed as per the designs.
• Align the Hordy slabs one after another in

40, 50 cm
0.91 Btu/ft2.F˚.hr
parallel lines (one direction) or perpendicular
Noise Insulation
lines (two directions).
Insulates noise as per required according to the building rules and
• Put light steel net to the upper slab above the
codes.

18
 Reinforced Slabs

Hordy after finishing the whole line of Hordy.

• Cast concrete in the ribs and beams and cast the upper slab above the
Arches
Hordy.
• Disassemble the wooden mould when the concrete becomes solid and AAC Panels

after its treatment. Lintels

• The used Hordy slab is not removed after casting the ceiling but it always AAC Block
remains inside it.
Note: You can install the Hordy Slab first and then put the rib reinforcement
steel and the bridges.

Design Information
- You should put a light net of reinforcement steel to the upper slab of a
minimum percentage of 0.18% in both directions.
- A horizontal beam should be installed on the ribs when the length of the
rib exceeds 6 m. AAC Blocks usage in various parts of the building
- You should install beams under the inner cuts and under the central loads.
- You should stop the Hordy line near the rests to increase the cutting
resistance.
- The depth of the steel reinforcement steel ranges between 2 to 6 cm as
per the hours of fire resistance.
- When there is any kind of installation inside the slab, the thickness of
covering should not be less than 2.5 cm.

Testing Hordy Slabs 300

The factor of the white blocks performs many tests to ensure the validity of the
raw materials which are used in the production process as per the international
specification set for each test.
Samples of the Hordy slabs are tested as follows:

The Test The Allowed Values The Standard

Density 300-500 kg/cm 3
DIN 4165
Pressure resistance 20-25 kg/cm 3
DIN 4165
Heat conductivity 307 Btu/ft2.f.hr ASTM-C-518
The patent of
the National
Industries
Factory
19
 The Ideal Heat Insulation of Buildings
Looking at the attached picture as a general sample of buildings, we notice AAC Block
that a high percentage of the building is not insulated like the colums and the 25cm thickness
bridges which in total together with the weak insulation of the ceilings reduces
the insulated area of the outer walls to less than 30% which in turn deprives the
Roof
consumer of a lot of its benefits of saving e energy and comfort.
For the ideal heat insulation, we demonstrate the following:
- The outside walls are built with the insulation white slabs of 25 cm thickness. 20 5
20 cm of it shall be on the lintel of the floor and 5 cm free in the air. (figure2)
- When you complete the outside walls, the columns and bridges are insulated
with the approved insulation like Stiropor, the glass wool or otherwise of 5 cm
thickness. The roof is also insulated for heat by using the ‘NIC’ slabs or other
Thermal Insulator
effective insulation materials like the Poly Ethylene. 25cm thickness
- The building is then finished and the ceiling is tiled as per the owner's wish. Concrete

Floor

Isolated AAC Block

Surface 25cm thickness

Non-Isolated
Surface

)Figure 1( )Figure 2(

20
8x
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