Pengaruh Penambahan Abu Ampas Tebu Terhadap Sifat Fisis Dan Mekanis Batako

Abstract

In this modern era of many alternative construction materials utilized industrial waste of untapped, as example is waste bagasse ash of sugar factory, waste bagasse ash can be used as a substitution of cement in This research used on these construction mterials namely concrete block, then the Untilization bagasse ash as substitution of cement in the manufacture of concrete block can be used for authorized even got a lighter mass of concrete block without the addition of bagasse ash. This research was conducted with a mix of concrete block materials compariso which is done by comparison of mixed concrete block, namely sand : cement : water is 3.75 : 1 : 0.25. Bagasse ash mixed with variations: 20%, 40%, replace some functions of cement (binder) by reducing the mass of the cement of mass bagasse ash and as a comparison is made with a blend of sugar cane husks ash levels of 0%. The results showed that the bracket without the use of bagasse ash has density 1,7gr/cm3, water absorption 6,7%, compressive strength 9,73Mpa, test result on 20% ashes bagasse density 1,45gr/cm3, water absorption 12,17%, compressive strength 8.81Mpa and test results on 40% bagasse ash has density 1.14gr / cm3, water absorption 16.69%, compressive strength 7.03MPa. It can be concluded that more and more usage of bagasse ash more weight of concrate block and water absorption is higher but still fulfill SNI-03-0349-1989 requirement that water absorption is less than 25%. It can be seen that the use of good mixed variation is 20% bagasse in concrate block has the same characteristic both with 0% bagasse ash and has a lighter mass which can also save the cost of cement consumption by 20.07%