CONCRETE FLOORS-FREE MOVEMENT (FM2) REPORT
PROJECT INDUSTRIAL FACILITIES FOR LGB
CONTRACTOR SUROJ BUILDCON PVT. LTD.
PMC PROGRESSIVE EXPERT CONSULTING PVT. LTD.
AGENCY LAMBA TECHNO FLOORING SOLUTIONS PVT. LTD.
MAJOR OBSERVATIONS ABOUT FM 2 & ASHFORD
TREATMENT
MAJOR OBSERVATIONS ABOUT FM 2
( DURING THE PROCESS AND AFTER THE PROCESS COMPLETED )
1) Sub base tolerance beyond specifications. SBPL not maintained PCC top level as per
drawing.
2) Complete closed environment was not available.
3) Some actions had been taken to control the temperature of concrete but its not sufficient
to fulfil the requirement.
4) During concreting at some times slump was high which causes bleeding of concrete
directly affect to the strength and delay to the further process.
5) Adquate Skilled labours was not present for reinforcement work during concrete.
6) After the process completed at some area cracks and wholes are found out which
repaired before ashford treatment.
7) After curing work, it appers that water accumulating at some area which question about
flatness of floor (FM2).
8) Also no surveying or checking from lamba agency and SBPLfor the verification that the
FM2 specification is achieved or not.
RECOMMENDED TESTS
SURFACE REGULARITY TEST
I. Property E
II. Property F
As a client we also want to be assure of consistent results and quality. The key
measurements should include properties for surface refinement such as:
Gloss level (as discussed in astm d523)
DOI (distinction of image, discussed in astm d4039)
Abrasion resistance (discussed in bs 8204/en13892-4)
SCOF (slip coefficient of friction, discussed in ansi b101)
PHOTOGRAPHS OF OBSERVATIONS:
BLEEDING OF CONCRETE DURING CONCRETE POUR
At fire door opening floor was not finished properly
Water accumulated due to irregular surface
Damaged floor near fire door repaired with proper methodology
MAJOR OBSERVATIONS ABOUT ASHFORD TREATMENT
1) Due to the rain during ashford treatment, it might affect quality of floor.
2) Process has been completed as per lamba method statement but floor is not clean need
to be inspect after proper cleaning.
3) At some area hair cracks and small whole spots are found out.
4) After grinding Scratches of blades found out .
5) At some area White spots appeared.
6) Hand polishing near column and wall not done properly.
7) Sealant filling work is balance.
8) Variation in colour and glossiness.
9) Heavy vehicle movement happeing near floor during process.
NOTE :- All the rectification should be done before hand over of floor.
RECOMMENDED TESTS
American Society for Testing and Materials (ASTM)
• ASTM C779 Standard Test Method for Abrasion Resistance
of Horizontal Concrete Surfaces
• ASTM C805 Standard Test Method for Rebound Number of
Hardened Concrete
• ASTM C1028 Standard Test Method for Determining the
Static Coefficient of Friction of Ceramic Tile and Other
Like Surfaces by the Horizontal Dynamometer Pull-Meter
Method
• ASTM D3359 Standard Test Methods for Measuring
Adhesion by Tape Test
• ASTM F150(06) 2018 Standard Test Method for Electrical
Resistance of Conductive and Static Dissipative Resilient
Flooring
PHOTOGRAPHS OF OBSERVATIONS:
UNREPAIRED CRACKS
WHITE SPOTS
SCRATCHES OF BLADES
