civil engineering testing Method

AGGREGATE CRUSHING VALUE TEST. ( IS : 2386 – PART – 4 ) INTRODUCTION : The principal mechanical properties required in stones are (i) satisfactory resistance to crushing under the roller during construction and (ii) adequate resistance to surface abrasion under traffic. Aggregates used in road construction, should be strong enough to resist crushing under traffic wheel loads. If the aggregates are weak, the stability of the pavement structure is likely to be adversely affected. The strength of coarse aggregates is assessed by aggregates crushing test. The aggregate crushing value provides a relative measure of resistance to crushing under a gradually applied compressive load. To achieve a high quality of pavement, aggregate possessing low aggregate crushing value should be preferred Object : To determine the aggregate crushing value by compressive testing machine. Apparatus : a) Steel cylinder with open ends, and internal diameter 152 mm, square base plate, plunger...

AGGREGATE CRUSHING VALUE TEST. ( IS : 2386 – PART – 4 ) INTRODUCTION : The principal mechanical properties required in stones are (i) satisfactory resistance to crushing under the roller during construction and (ii) adequate resistance to surface abrasion under traffic. Aggregates used in road construction, should be strong enough to resist crushing under traffic wheel loads. If the aggregates are weak, the stability of the pavement structure is likely to be adversely affected. The strength of coarse aggregates is assessed by aggregates crushing test. The aggregate crushing value provides a relative measure of resistance to crushing under a gradually applied compressive load. To achieve a high quality of pavement, aggregate possessing low aggregate crushing value should be preferred. Object : To determine the aggregate crushing value by compressive testing machine. Apparatus : a) Steel cylinder with open ends, and internal diameter 152mm, square base plate, plunger...