STRAW PULP WASTE LIQUOR AS A WATER-REDUCING ADMIXTURE

被引：9

作者：

CHANG, DY

CHAN, SYN

机构：

[1] Hong Kong Polytechnic Univ, Hong Kong

来源：

MAGAZINE OF CONCRETE RESEARCH | 1995年 / 47卷 / 171期

关键词：

24;

D O I：

10.1680/macr.1995.47.171.113

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper discusses the production and properties of a new water-reducing admixture produced from alkaline treated straw pulp waste liquor. The development of the new material could help to eliminate the environmentally polluting black waste liquor of paper pulp, and also provides a low-cost by-product that can be widely used in the construction industry. It could have important social and economic benefits. The new water-reducing admixture is produced by evaporation and sulphonation of the alkaline treated black straw pulp waste liquor. It gives a water reduction of over 8%, and the compressive strength of concrete could be increased by over 10%. The admixture complies with the relevant Chinese National Standard. Trial tests show that this type of water-reducing admixture can be further modified to become a high-range water reducer by use of a modifying agent.

引用

页码：113 / 118

页数：6