Mixture of clay and telethong as environmental friendly binder

Abstract

This research was inspired by the phenomenon of local wisdom that has existed in the archipelago. In Bali using cow manure as stucco for finishing their walls. In the village of Teraseng, Menganti - Gresik Regency uses the waste as a cover for the walls of their houses from woven bamboo. In the village of Sade - Mataram, Lombok Island, a mixture of cow dung waste (telethong) has been used as stucco on the floor of the house. This paper examines to the extent that scientific evidence can be made of existing local wisdom. The combination of silicate-rich clay and telethong has been tested on mortar specimen. Sample mortar was physically and mechanically tested at 3, 7, 14 and 28 days. The results of the trials showed that the binding material produced by a combination of clay and telethong was still below the PC cement sample strength which was used as a control variable. In combination of clay and telethong, compressive test results show that the greater the telethong level, the lower the compressive strength produced. The test sample with a percentage of 25% gives the maximum results with ratio of 6% of the PC cement sample value as the control variable.