PROPOSED CONSTRUCTION AND COMPLETION OF
CONNECTION TO LATAR HIGHWAY AT KM 7.50(E25) CONSISTS
OF GROUND TREATMENT WORK, EARTHWORK, RETAINING
WALL, ROAD & DRAINAGE, BRIDGES, M&E INFRASTRUCTURE
AND OTHER RELATED WORKS AT PART OF THE LOT 7047, 7048,
7051, 7053, 7057, 7059, 7060, 7061,7062,7063, AND 7065, MUKIM IJOK,
DAERAH KUALA SELANGOR, SELANGOR DARUL EHSAN UNTUK
TETUAN PARAGON PINNACLE SDN BHD
METHOD OF STATEMENT
FOR
GUNITING
CLIENT
PARAGON PINNACLE SDN BHD
CONSULTANT
JURUTERA PERUNDING PESONA REKABINA SDN. BHD.
SUBMISSION RECORD
REVISION NO. ISSUE DATE REVISION INFORMATION
0 08/03/2023 New Submission
GAGASAN RHEMA ENGINEERING SDN BHD (945356-X)
No.27 Jalan PUJ 3/5, Taman Puncak Jalil, Bandar Putra Permai,
43300 Seri Kembangan, Selangor Darul Ehsan.
Tel : (603) 8944 0882 / 8999 4985 Fax : (603) 8999 4980
Email : grhema99@gmail.com
METHOD OF STATEMENT FOR GUNITING
1. STRENGTH OF GUNITE CONCRETE
Gunite concrete Grade 30 – 1: 1.5 (cement / sand mixed proportion base in volume)
2. DESCRIPTION
1) This guniting process is a dry mix process.
2) Minimum cement content shall be 350kg/m3.
3. PROCEDURE
1) All surface roots, vegetation and loose materials shall be trimmed, cut and removed.
2) Use high water pressure jet to clean surface follow by compressed air to dry the surface.
3) Two layer of BRC A8 mesh reinforcement shall be installed on the designation slope
location with minimum 30mm thick spacer.
4) Prior to guniting, 50mm diameter UPVC weepholes shall be installed at predetermined
location and secured to the wire mesh using tie wires, the embedded end of the UPVC
pipe shall be wrapped around with geotextile Polyfelt TS20 sheet (or equivalent) and
the exposed end which will eventually be protruding out of the finished gunite face
shall be wrapped with plastic to prevent ingression of gunite mix during guniting.
5) The plastic wrapping shall later be removed upon completion of guniting.
6) By using 1: 1.5 mixed proportion base on volume to mix the cement and sand to either
the gunite machine and conveyed by compressed air with delivery hose.
7) Water supply shall be discharged through the nozzle from a water pump to form a wet
mix at the nozzle. The nozzleman shall control the water for the mix supply at the
nozzle.
8) Gunite mix shall be sprayed onto the cleaned surface in circular motion until 125mm
minimum thickness guniting of soil slope is achieved.
9) The nozzle shall be always directed perpendicular to the surface from about 1-2m away.
10) The sequence of guniting shall be from the top to the bottom of the slope (bottom up
direction) for every stage. This is to prevent accumulation from bound of shotcrete at
the bottom and also stacking up of fresh shotcrete over the early sprayed shotcrete.
GAGASAN RHEMA ENGINEERING SDN BHD (945356-X)
No.27 Jalan PUJ 3/5, Taman Puncak Jalil, Bandar Putra Permai,
43300 Seri Kembangan, Selangor Darul Ehsan.
Tel : (603) 8944 0882 / 8999 4985 Fax : (603) 8999 4980
Email : grhema99@gmail.com
