土壤矿物成分对水泥稳定夯实土抗压强度的影响

The Effect of Soil Mineral Composition on the Compressive Strength of Cement Stabilized Rammed Earth.

作者信息

Narloch Piotr, Woyciechowski Piotr, Kotowski Jakub, Gawriuczenkow Ireneusz, Wójcik Emilia

机构信息

Faculty of Civil Engineering, Warsaw University of Technology, Al. Armii Ludowej 16, 00-637 Warsaw, Poland.

Faculty of Geology, University of Warsaw, Żwirki i Wigury 93, 02-089 Warsaw, Poland.

出版信息

Materials (Basel). 2020 Jan 10;13(2):324. doi: 10.3390/ma13020324.

DOI:10.3390/ma13020324

PMID:31936764

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7013938/

Abstract

Cemented stabilized rammed earth (CSRE) is a building material used to build load bearing walls from locally available soil. The article analyzes the influence of soil mineral composition on CSRE compressive strength. Compression tests of CSRE samples of various mineral compositions, but the same particle size distribution, water content, and cement content were conducted. Based on the compression strength results and analyzed SEM images, it was observed that even small changes in the mineral composition significantly affected the CSRE compressive strength. From the comparison of CSRE compressive strength result sets, one can draw general qualitative conclusions that montmorillonite lowered the compressive strength the most; beidellite also lowered it, but to a lesser extent. Kaolinite lightly increased the compressive strength.

摘要

水泥稳定夯实土（CSRE）是一种利用当地土壤建造承重墙的建筑材料。本文分析了土壤矿物成分对CSRE抗压强度的影响。对各种矿物成分但粒径分布、含水量和水泥含量相同的CSRE样品进行了压缩试验。基于抗压强度结果和分析的扫描电子显微镜图像，发现即使矿物成分的微小变化也会显著影响CSRE的抗压强度。通过对CSRE抗压强度结果集的比较，可以得出一般定性结论：蒙脱石对抗压强度的降低作用最大；贝得石也会降低抗压强度，但程度较小。高岭石则会轻微提高抗压强度。