粉煤灰对水泥-聚羧酸减水剂体系早期Zeta电位和电导率的影响研究

温勇; 邓雷; 韩国旗

doi:10.13568/j.cnki.651094.2015.02.04

您当前的位置：

首页 >

文章列表页 >

粉煤灰对水泥-聚羧酸减水剂体系早期Zeta电位和电导率的影响研究

更新时间：2026-01-21

- 粉煤灰对水泥-聚羧酸减水剂体系早期Zeta电位和电导率的影响研究
- Journal of Xinjiang University (Natural Science Edition in Chinese and English) Vol. 32, Issue 2, Pages: 146-150(2015)
- 作者机构：
  
  新疆大学建筑工程学院
- 作者简介：
- 基金信息：
- DOI：10.13568/j.cnki.651094.2015.02.04
  CLC： TU528
- Published：2015
- 稿件说明：
移动端阅览
[1]温勇,邓雷,韩国旗.粉煤灰对水泥-聚羧酸减水剂体系早期Zeta电位和电导率的影响研究[J].新疆大学学报(自然科学版),2015,32(02):146-150+253.
[1]温勇,邓雷,韩国旗.粉煤灰对水泥-聚羧酸减水剂体系早期Zeta电位和电导率的影响研究[J].新疆大学学报(自然科学版),2015,32(02):146-150+253. DOI： 10.13568/j.cnki.651094.2015.02.04.

DOI：10.13568/j.cnki.651094.2015.02.04.

摘要

粉煤灰作为常用的活性矿物掺合料

在当前配制绿色高性能混凝土中得到了广泛的应用.本文采用电声法zeta电位仪测定了不同掺量的粉煤灰与不同掺量的聚羧酸减水剂(PCA)对水泥水化早期zeta电位的影响

并同时测定水泥水化溶液体系的电导率

以此来判定粉煤灰按照一定比例替代水泥后对水泥-减水剂体系水化早期Zeta电位的影响情况.结果表明

粉煤灰总体会降低水泥水化早期的zeta电位值

在水化体系的zeta电位和电导率测试结果中粉煤灰与聚羧酸减水剂表现出一定的协同作用效果

有助于改善混凝土的和易性.

Abstract

Fly ash

as commonly used active mineral admixture of concrete

has been widely used in green high performance concrete. In this paper

it has measured the zeta potential values of different dosages of fly ash with different amounts of polycarboxylic acid water reducing agent(PCA) to the influence of the cement hydration at early age by the electro-acoustic method

and measured the electrical conductivity in the system of cement hydration solution at the same time. The results showed that

fly ash can reduce the zeta potential of early cement hydration

fly ash with polycarboxylic acid water reducing agent showed certain synergy effect in measured of the zeta Potential and conductivity

and contribute to the improvement of the workability of concrete.

关键词

Keywords

references

钱觉时.粉煤灰特性与粉煤灰混凝土[M].北京:科学出版社,2002.

Alain Bilodeau,Mohan Malhotra V.High volume fly ash system:concrete solution for sustaintable development[J].ACI Materials Journal,2000,97(1):41-48.

Faiz U A Shaikh,Steve W M Supit.Mechanical and durability properties of high volume fly ash(HVFA)concrete containing calcium carbonate(Ca CO3)nanoparticles[J].Construction and Building Materials,2014,70:309-321.

覃丽坤,宋宏伟,王秀伟.大掺量粉煤灰混凝土在海水中冻融循环后的试验研究[J].混凝土,2014,9:12-14+18.

李北星,周长泉,蔡老虎,等.硫酸环境作用下粉煤灰混凝土性能劣化时变规律[J].材料科学与工程学报,2014,32(6):809-815.

陈烽,肖佳,唐咸燕.模拟酸雨环境下粉煤灰对水泥砂浆抗蚀性能影响的试验研究[J].粉煤灰,2006,18(06):11-13.

Bellmann F,Erfurt W,Ludwig H-M.Field performance of concrete exposed to sulphate and low p H conditions from natural and industrial sources[J].Cement and Concrete Composites,2011,34(1):86-93.

Cheewaket T,Jaturapitakkul C,Chalee W.Long term performance of chloride binding capacity in fly ash concrete in a marine environment[J].Construction and Building Materials,2009,24(8):1352-1357.

韦园红,虞大红,叶汝强.聚乙烯醇在Al2O3、Si O2颗粒上的吸附及对Zeta电位的影响[J].华东理工大学学报,2001,(1):99-102.

Views

342

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

No data

Related Author

No data

Related Institution

No data

⁰