港口航道与近海工程2025，Vol.62Issue(2)：34-40,46,8.DOI:10.16403/j.cnki.ggjs20250208
滨海地基软土碳化加固影响因素研究
Factors Affecting Carbonation-Induced Solidification of Littoral Soft Soil Base
摘要
Abstract
To improve the mechanical properties of littoral facies soft soil base,CO2 carbonation and unconfined compressive strength tests were carried out by adding industrial wastes and reactive MgO etc.that were combined to be a new green solidification technique.By studying the influence of various materials and other factors on the soft soil improvement,it was found that an appropriate increase in sand content could improve the compressive strength of carbonation specimens subject to 5%reactive MgO.Carbide slag could improve soft soil base obviously in comparison with other industrial wastes,the compressive strength could be raised up to 18.7 times.Cement could improve the carbonation efficiency,the maximum value could be reached based on 25%cement,the compressive strength could be increased up to 27.7 times.To prolong the carbonation time could improve the carbonation effect of the specimens with fly ash,slag or cement,and enhance the amount of absorbed CO2.However,an excessively long carbonation time would induce a sharp decline in carbonation efficiency.关键词
地基软土/工业废渣/碳化试验/抗压强度/碳化时间Key words
soft soil base/industrial wastes/carbonation test/compressive strength/carbonation time分类
土木建筑引用本文复制引用
张艳林,李时臻,王东星,朱贵荣,卓师婷..滨海地基软土碳化加固影响因素研究[J].港口航道与近海工程,2025,62(2):34-40,46,8.基金项目
湖北省自然科学基金杰出青年项目(2024AFA051) （2024AFA051）
湖南省自然科学基金青年A类项目(2025JJ20049) （2025JJ20049）
