花岗岩风化土制备抗冻免烧砖试验研究

金属矿山 ›› 2025, Vol. 54 ›› Issue (7): 286-292.

花岗岩风化土制备抗冻免烧砖试验研究

王志伟¹ 　喻文强² 　陈志勇¹ 　薛璐韬²　龚泉冰¹ 　李　瑞² 　李育彪²

1. 中电建(蕲春)新材料有限公司,湖北武汉 430000;2. 武汉理工大学资源与环境工程学院,湖北武汉 430070

出版日期:2025-07-15 发布日期:2025-08-14
作者简介:王志伟(1988—),男,高级工程师。
基金资助:
地球深部探测与矿产资源勘査国家科技重大专项(编号:2024ZD1004005);湖北三峡实验室开放/ 创新基金项目(编号:SC232019)。

Experimental Research on the Preparation of Freeze-Resistant Unfired Bricks from Granite Weathered Soil

WANG Zhiwei ¹　 YU Wenqiang² 　 CHEN Zhiyong ¹　 XUE Lutao² 　 GONG Quanbing ¹ 　 LI Rui ² 　 LI Yubiao²

1. Power Construction Corporation of China (Qichun) New Material Co. ,Wuhan 430000,China; 2. School of Resources and Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China

Online:2025-07-15 Published:2025-08-14

摘要/Abstract

摘要： 为解决花岗岩风化土大量堆存造成的环境问题,并探索其资源化利用途径,本研究旨在开发一种以花岗岩风化土为主要原料的抗冻免烧砖。以花岗岩风化土和市售 P. O 525 水泥为原料,采用压制法制备免烧砖,系统研究风化土掺量、养护龄期及铁元素对抗冻性能的影响。当风化土与水泥配比为 1 ∶1 时,制备的免烧砖 28 d 抗压强度达 24. 87 MPa,软化系数为 97. 12%,抗冻系数为 90. 66%,表明其具备优异的力学性能和抗冻耐久性。该研究为花岗岩风化土的高效资源化利用提供了可行方案,所制备的免烧砖性能指标满足建筑材料应用要求,具有显著的环保价值与推广潜力。

关键词: 花岗岩风化土　免烧砖　抗冻性　资源化利用

Abstract: In order to address the environmental issues caused by the massive stockpiling of granite weathered soil and explore pathways for its resource utilization,this study aimed to develop a frost-resistant non-fired brick using granite weathered soil as the primary raw material. Non-fired bricks were fabricated by the compaction method using granite weathered soil and commercially available P. O 525 cement as raw materials. The effects of weathered soil content,curing age,and iron content on frost resistance were systematically investigated. At a weathered soil-to-cement ratio of 1 ∶1,the fabricated non-fired bricks achieved a 28-day compressive strength of 24. 87 MPa,a softening coefficient of 97. 12%,and a frost resistance coefficient of 90. 66%,demonstrating excellent mechanical properties and frost durability. This research provides a feasible solution for the efficient resource utilization of granite weathered soil. The performance indicators of the developed non-fired bricks meet the requirements for building material applications,exhibiting significant environmental benefits and promising application prospects.

Key words: weathered granite soil,unfired bricks,freeze resistance,resource utilization

中图分类号:

王志伟　喻文强　陈志勇　薛璐韬　龚泉冰　李　瑞　李育彪. 花岗岩风化土制备抗冻免烧砖试验研究[J]. 金属矿山, 2025, 54(7): 286-292.

WANG Zhiwei 　 YU Wenqiang 　 CHEN Zhiyong 　 XUE Lutao 　 GONG Quanbing 　 LI Rui 　 LI Yubiao . Experimental Research on the Preparation of Freeze-Resistant Unfired Bricks from Granite Weathered Soil[J]. Metal Mine, 2025, 54(7): 286-292.

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