The combination of green construction method and the use of tabas waste as a substitute for cement

Abstract

Green construction is a construction process that carries the concept of sustainability where the construction process can reduce environmental degradation by utilizing existing waste in the surrounding environment, contributing to reducing the level of environmental pollution, and being able to reduce waste from the construction itself. The use of tabas as a substitute for cement is one of the implementations of the green construction concept itself, where the waste of rock that produced by the temple stone craftsmen ranges between 20%-30%, which utilization is not optimal, so it often becomes waste that accumulates in the production area so that it can damage the environment due to the compounds of the tabas waste. The use of rock as a substitute for cement both reducing the amount of cement usage which produces 8% CO2 emissions where the percentage is the third-largest in the world even far beyond aircraft fuel. From the results of the study using tabas rock to replace 10% of the volume of cement in the mixture, obtained a concrete strength of 22.21 MPa so that it meets the criteria as normal concrete. With the combination of green construction methods using a combination of tabas concrete and metal deck floor plates, in terms of the cost of making concrete are obtained savings by 20.48% and a reduction in the amount of construction waste originating from formwork by 35.96%.