Properties and Mechanisms of SY Soil Stabilizer Components in Slope Protection Engineering

ZHANG Hui-li; LIAO Ke; SHI Yi-tong

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Properties and Mechanisms of SY Soil Stabilizer Components in Slope Protection Engineering

- Properties and Mechanisms of SY Soil Stabilizer Components in Slope Protection Engineering
- Bulletin of Soiland Water Conservation Vol. 29, Issue 1, Pages: 151-155(2010)
- 作者机构：
  
  1. 西北农林科技大学水利与建筑工程学院, 陕西杨凌,712100
  2. 水利部新疆水利水电勘测设计研究院,新疆,乌鲁木齐,830000
  3. 沈阳晟耀新型建筑材料公司, 辽宁沈阳 1100003
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
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ZHANG Hui-li, LIAO Ke, SHI Yi-tong. Properties and Mechanisms of SY Soil Stabilizer Components in Slope Protection Engineering[J]. Bulletin of Soiland Water Conservation, 2010, 29(1): 151-155.
DOI：

ZHANG Hui-li, LIAO Ke, SHI Yi-tong. Properties and Mechanisms of SY Soil Stabilizer Components in Slope Protection Engineering[J]. Bulletin of Soiland Water Conservation, 2010, 29(1): 151-155. DOI：

摘要

将SY土壤固化剂和水泥掺入砂壤土

制成不同形状规格的SY固化土护坡构件

分别在水泥含量15%

20%和25%

固化剂掺量为1%

3%和4%时

制成最大干密度的试样

进行了3

14和28d无侧限抗压强度试验

以及水泥含量25%

固化剂掺量3%时的冻融循环试验。结果表明

SY固化剂能显著提高砂壤土的力学性能和抗冻性能;在同一个固化剂掺量下

其力学性能和抗冻性能随着水泥含量的增加而提高;固化剂掺量、水泥含量与土壤含量三者之间存在协调性。SEM测试和机理分析表明

SY土壤固化剂生成的大量二氧化硅凝胶和微膨胀的钙矾石晶体

使内部结构更加致密

从而提高了砂壤土的宏观力学性能和抗冻性能。SY固化土护坡构件完全满足护坡工程质量要求

具有较高的经济、社会和生态价值。

Abstract

Slope protection components made of sandy soil

cement

and a stabilizer named SY were investigated.Unconfined compressive strength and freeze-thaw cycle tests were carried out by samples with maximum dry density.Results present that all the engineering properties of the stabilized soil samples are improved significantly and SY stabilizer

cement

and sandy soil have coordination.From SEM pictures and mechanism analyzes

it can be proved that for sandy soil which has more pores in micro-structure

AFt Crystals

SiO2 gel

and C-S-H gel fill pores well

which makes the micro-structure denser and the expansion of AFt Crystals.They all benefit macro-engineering properties of stabilized sandy soil.SY solidified soil components satisfy the quality requirements in slope protection engineering and have high economic

social

and ecological values.

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