Utilization of calcium lignosulfonate with different molecular masses in mortar for shield tunneling method

ZHENG Dafeng; QIU Xueqing; LOU Hongming; YANG Dongjie

您当前的位置：

首页 >

文章列表页 >

Utilization of calcium lignosulfonate with different molecular masses in mortar for shield tunneling method

更新时间：2025-12-10

- Utilization of calcium lignosulfonate with different molecular masses in mortar for shield tunneling method
- CIESC Journal Issue 9, Pages: 2382-2387(2007)
- 作者机构：
  
  华南理工大学化工与能源学院，广东省绿色化学产品技术重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 September 2007，
  
  Published：05 September 2007
- 稿件说明：
移动端阅览
ZHENG Dafeng, QIU Xueqing, LOU Hongming, et al. Utilization of calcium lignosulfonate with different molecular masses in mortar for shield tunneling method[J]. CIESC Journal, 2007, (9): 2382-2387.
DOI：

ZHENG Dafeng, QIU Xueqing, LOU Hongming, et al. Utilization of calcium lignosulfonate with different molecular masses in mortar for shield tunneling method[J]. CIESC Journal, 2007, (9): 2382-2387. DOI：

摘要

在对木质素磺酸钙进行超滤分级，并对其不同相对分子质量（M）的级分进行红外光谱表征的基础上，实验研究了不同M的级分对盾构砂浆工作性能的影响。结果表明，中高M级分对砂浆性能的影响最大，掺量为0.4%（质量分数）时，其减水率达9.4%，砂浆的流动度从193 mm提高至243 mm，3 h内砂浆的流动度损失率由71.6%降为43.0%，2 h内砂浆的泌水率由5.1%下降到1.0%。在实验的基础上，提出了可以通过适当增大M的方法提高木质素磺酸钙的应用性能。

Abstract

Calcium lignosulfonate(CLS) was separated by ultrafilter and was characterized with IR spectroscopy.The effects of CLS with different relative molecular masses(M) on the properties (fluidity

fluidity loss

stability

setting time) of the mortar for the shield tunneling method was investigated.The results showed that the effects of CLS3 (the fraction with medium-to-high M) were the most evident.When 0.4% (mass) CLS3 was added

water reduction of the mortar was 9.4%

fluidity was enhanced from 193 mm to 243 mm

relative fluidity loss after 3 h was reduced from 71.6% to 43.0%

and the bleeding after 2 h decreased from 5.1% to 1.0%.Medium-to-high molecular mass of CLS was proposed to modify CLS as the admixture of the mortar for the shield tunneling method.

关键词

Keywords

references

Views

191

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Measurement of adsorption layer thickness of water reducer by using XPS

Research progress of ionic liquids in separation of aromatics/alkanes and olefins/alkanes

Recent advances and perspectives on sulfide-based photocatalysts for hydrogen production

The impact of novel flow channel structure with sudden-expansion ratio on seawater-activated battery

Multi objective optimization of flow and heat transfer characteristics of modified manifold microchannel heat sink based on machine learning

Related Author

ZHENG Dafeng

QIU Xueqing

LOU Hongming

Related Institution

华南理工大学化工与能源学院

⁰