MATEC Web Conf.
Volume 331, 2020International Conference on Urban Disaster Resilience (ICUDR 2019)
|Number of page(s)||7|
|Section||Sustainable Construction Materials|
|Published online||09 December 2020|
Sustainable development: Using stone dust to replace a part of sand in concrete mixture
Lecturer in Civil Engineering Department, Tadulako University Palu, Indonesia.
* Corresponding author: email@example.com
Stone dust is a waste material produced in stone crusher industry. Stone dust produced from the crushed stone industry is quite numerous. PT Mega Beton Jaya is a stone crushed industry, which is located in Buluri, Palu, has difficulty in providing a location to accommodate the waste of stone dust. In addition, the community around this industry is quite worried with the waste ash as the air around the industry contaminated with the stone ash. This study aims to find out the maximum percentage of stone dust to substitute sand in a concrete mix to obtain the maximum strength and good workability. The cement used throughout this work was Portland cement composite (PCC) produced by PT Semen Tonasa, the sand was taken from Palu river, while the stone dust and coarse aggregate were taken from PT Mega Beton Jaya stone crushed industry. The percentages of stone dust replacing sand were varied from 0, 20, 30, 40, 60, 80 and 100% to find out the maximum percentage of stone dust to replace sand from river to produce the maximum compressive strength of concrete. The results of this research showed that the maximum percentage of stone dust, which could replace river sand in concrete mixture was 40% with the strength 15% higher than that of concrete with natural sand only. The higher the percentages of stone dust, which were used to replace a part of sand in concrete mixtures resulted the lower slump of concrete. In addition, the replacing natural sand with stone dust higher than 20% produced the value of slump for both normal and high strength concretes lower than those concretes with natural sand only.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.