Answer / tsholofelo

Some possible sources of errors in the California Bearing
Ratio (CBR) test are worn test tools, trash in the test
area, recent rain, old stream bed, missing the standard
height during compaction, compacting slower or faster than
compaction rate, and hitting the mould against hard objects
in order to remove the contents after compaction can remove
it from calibration.

1 building project (work in progress) and following are sum detail about his project 1) Using local rebar grade 415 2) Total built up area- 60000 sq.ft 3) Floors to be constructed – 21 storey 4) Estimated requirement of Steel per sq. foot – 7KG/sq.ft 5) Concrete grade – M35 6) Rebars mainly required (sizes)- 16,20,25,32 & (8 mm for stirrups) Wanted to ask u if this person uses 500D…what are the benefits he will be getting? Whether his per Sq. foot consumption can b reduce? If yes den around how much?

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