Which are the laboratory tests to be performed at a construction site before and after concrete?

[Quest Bot]

Which are the laboratory tests to be performed at a construction site before and after concrete?

 

[Dnyan Deshmukh]

Test perform at laboratory before production of concrete

there is only one test is preformed at laboratory before production concrete when the aggregates are in wet condition. Moisture level is calculated for all agregates by taking samples and accordingly corrections in weight of aggregates and water is done before production of concrete.

The following tests on material is done at laboratory base on frequency like each lot, weekly, monthly etc.

For aggregates
Sieve analysis
water absorption
specific gravity
Dry loose bulk density
rodded density
crushing value
impact value
elongation index
flakiness index

For Cement
Consistency
Color
Temperature
Fineness
manufacturing details
compressive strength

For Admixture
Admixture performance test is done when new lot of admixture is received.
pH value

For GGBS and Fly Ash
Fineness

Test which are perform at laboratory after concrete
Compressive strength test is the only test which is done in laboratory after concreting.