ABRASION AND DROP WEIGHT IMPACT RESISTANCE OF COCONUT SHELL ASH CONCRETE

Cement is replaced by 10%, 15%, 20%, 30%, 40% and 50% with coconut shell ash CSA. Compressive strength of mortar and concrete made with CSA is found out. Abrasion resistance of concrete samples of two mix designs is found out in terms of wear loss. Drop weight impact test was also conducted on CSA concrete samples and increase in number per blow was found out. Drop weight impact test and abrasion resistance gives the idea of how coconut shell ash concrete will behave where there can be sudden impact of load or where the concrete surface is subjected to abrasion on regular basis. It is concluded that up to 10% of replacement of cement with CSA is possible and it gives a good result on abrasion resistance test and drop weight impact test. CSA concrete can be used on concrete pavement like on some highways, airport runway and hangar and some industrial floors.