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3.
FIG. 15.1
TYPICAL DETAIL OF 100 THICK GROUND SLAB ON GRADE
HARDCORE SHALL BE OF SUITABLE MATERIAL COMPLYING WITH CLAUSE 3.01{vi) OF THE GENERAL SPECIFICATION OR GRADE 200 RECYCLED ROCK FILL AS SPECIFIED.
GROUND SLABS TO BE CAST IN ALTERNATE PANELS NOT GREATER THAN Sm X Sm. EVERY THIRD JOINT SHALL BE AN EXPANSION JOINT, THE REMAINDER BEING CONTRACTION JOINTS. (CONTRACTOR IS REQUIRED TO SUBMIT LAYOUT OF JOINTS FOR PSE'S APPROVAL PRIOR TO CONSTRUCTION OF THE GROUND SLABS ON GRADE)
2.
DETAIL OF EXPANSION JOINT
APPROVED POLYETHYLENE FOAM JOINT FILLER
THE INSITU FIELD DENSllY OF THE SOIL BENEATH HARDCORE SHALL NOT BE LESS THAN 90% OF THE MAXIMUM DRY DENSllY.
DETAIL OF CONTRACTION JOINT
TWO COATS OF BITUMINOUS PAINT
20 x 12 APPROVED POLYSULPHIDE / POLYURETHANE JOINT SEAlANT
1.
NOTES:
150mm MIN. HARDCORE OR 200mm MIN. GRADE 200 RECYCLED ROCKFILL 'AS SPECIFIED
ONE LAYER OF 65-80 pm POLYTHENE SHEET WITH 150mm LAP MIN.
STEEL FABRIC REINFORCEMENT AT TOP (BS4483 A193 3.02 kg/sq. m) WITH 300mm LAP MIN, WHERE REQUIRED.