DURABILITY

Abrasion Resistance of Concrete
Underwater Method
Ref. Standard: ASTM C1138

EKE 385:

This test method covers a procedure for determining the relative resistance of concrete including concrete overlays and impregnated concrete) to abrasion under water. This procedure simulates the abrasive action of waterborne particles (Silt, sand, gravel and other solids)

This test method is intended to qualitatively simulate the behavior of swirling water containing suspended and transported solid objects that produce abrasion of concrete and cause potholes and related effects such as the flow of water containing debris over soil ways during monsoons. This lest method should provide a relative evaluation of the resistance of concrete to such action. The results are expected to be useful in selection of materials, mixtures and construction particles  for use where such action is to be expected. The test methods is not intended to provide quantitative measurement of the length of service that may be expected from a specific concrete.

Steel balls tumbling in a circular orbit in swirling water on the concrete specimen.

The equipments of the following replaceable parts:

EKE 38501: Rotating Device – A drill machine with a chuck capable of holding and rotating the agitation paddle under test condition at a speed of 1200 ± 100 rpm
EKE 38502: Agitation Paddle
EKE 38503: Test Container – A steel pipe, 305 ± 6 mm inside diameter , 405 ± 25 mm fitted with a watertight steel blocks is welded on the base plate to support the specimen.
EKE 38504: Abrasive Charges – 1” dia. ball 10 No, 0.75” dia. 35 No, 0.50” dia. ball 25 No. 1 Set

Optional Accessories: 
EKE 308505: Mould – A cylindrical in shape , having a diameter approximately 6 mm less than that of the inside diameter of the test container and a height of 100 mm
EKE 38506:  Weighing Basket as per ASTM C1138
EKE 38507:  Weighing Balance 50 kg as per ASTM C1138
EKE 38508:  Water Tank as per ASTM C 1138