engineering recuitment KPSC JE Civil Mock Test 2020 Construction Materials and Management Aggregates
Which of the following is incorrect regarding various tests conducted on aggregates?
1
Crushing test is conducted for an aggregate passing through 12.5 mm sieve and retained on 10 mm sieve.
2
The aggregates subjected to Los Angeles Abrasion test is then sieved through 2.36 mm sieve to calculate abrasion value.
3
Aggregates used for concrete should have a specific gravity between 2.6 to 2.8.
4
Aggregate impact value should not be more than 45% for the aggregate used for making concrete.