土工基础

土工基础 ›› 2021, Vol. 35 ›› Issue (2): 156-160.

• 专题论述 • 上一篇    下一篇

木质素及其衍生物对土性能和机理的研究进展综述

陈学军1,2，丁 翔1,2，徐科宇1,2   

  1. (1.桂林理工大学土木与建筑工程学院，广西桂林 541004；2.广西岩土力学与工程重点实验室，广西桂林 541004)
  • 收稿日期:2020-03-02 修回日期:2020-03-07 出版日期:2021-04-23 发布日期:2021-04-24
  • 通讯作者: 丁 翔(1995-)，男，硕士，研究方向为环境工程、灾害地质与岩土工程等。
  • 作者简介:陈学军（1961-），男，博士，教授，博士生导师，研究方向为环境工程、灾害地质与岩土工程等。
  • 基金资助:
    桂林市科学技术研究开发项目（20170222）；国家自然科学基金项目（41762022,41967037）

State-of-the-Art Review of Lignin and Its Derivatives on the Soil Properties Modification

CHEN Xuejun1,2, DING Xiang1,2， XU Keyu1,2   

  1. (1.College of Civil and Architecture Engineering, Guilin University of Technology, Guilin 541004；
    2.Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin 541004)
  • Received:2020-03-02 Revised:2020-03-07 Online:2021-04-23 Published:2021-04-24

摘要： 木质素是一种有机高分子化合物，作为地球上最丰富的可再生能源物质，国内对于木质素及其衍生物改良土的研究还处于起步阶段，综合国内外的研究进展，简单介绍了木质素的结构、种类和不可降解性。重点归纳了木质素及其衍生物在对土的实验中掺入比的选取以及木质素及其衍生物对强度的影响，综合考虑掺入后水稳性、导热性、导电性、pH的影响，结合课题探究木质素改良重金属污染离子土的延伸，整理前人木质素与土的相互作用机理，为进一步研究木质素改良土提供参考和依据。

关键词: 木质素, 掺入比, 强度, 水稳性, 电阻率, 热阻率, 吸附性, 作用机理

Abstract: Lignin is an organic polymer compound and it is most abundant renewable energy material on earth. Researches on the lignin and its derivative as the additives for the soil improvement are still at the beginning stage. The paper provides a state-of-the-art review of the application of the lignin and its derivatives as the soil improvement. Structure characteristics of the lignin, types and non-degradability are introduced in the paper. The influence of different contents of lignin and its derivatives in soil samples on the compressive strength are summarized. Effects of water stability, thermal conductivity, electrical conductivity, and pH values after mixing are comprehensively reviewed. Further studies are concentrated on the application of lignin in improving the heavy metal contaminated ionic soils. The various interactions between lignin and the soil particles are also evaluated.

Key words: lignin, mixing ratio, strength, water stability, electrical resistivity, thermal resistivity, adsorption

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