偏高岭土-粉煤灰地聚物混凝土高温后的力学性能研究

张海燕; 袁振生; 闫佳

doi:10.13409/j.cnki.jdpme.2016.03.008

您当前的位置：

首页 >

文章列表页 >

偏高岭土-粉煤灰地聚物混凝土高温后的力学性能研究

钢结构抗火 | 更新时间：2025-12-11

- 偏高岭土-粉煤灰地聚物混凝土高温后的力学性能研究
- Experimental Study on Mechanical Properties of Metakaolin-fly Ash-based Geopolymer Concrete after Exposure to Elevated Temperatures
- 防灾减灾工程学报 2016年36卷第3期页码：373-379
- 作者机构：
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目（51478195）;华南理工大学亚热带建筑科学国家重点实验室自主课题项目（2013ZC21）资助
- DOI：10.13409/j.cnki.jdpme.2016.03.008
  中图分类号： U528
- 纸质出版：2016
- 稿件说明：
移动端阅览
[1]张海燕,袁振生,闫佳.偏高岭土-粉煤灰地聚物混凝土高温后的力学性能研究[J].防灾减灾工程学报,2016,36(03):373-379.

张海燕, 袁振生, 闫佳. Experimental Study on Mechanical Properties of Metakaolin-fly Ash-based Geopolymer Concrete after Exposure to Elevated Temperatures[J]. 2016, 36(3): 373-379.
[1]张海燕,袁振生,闫佳.偏高岭土-粉煤灰地聚物混凝土高温后的力学性能研究[J].防灾减灾工程学报,2016,36(03):373-379. DOI： 10.13409/j.cnki.jdpme.2016.03.008.

张海燕, 袁振生, 闫佳. Experimental Study on Mechanical Properties of Metakaolin-fly Ash-based Geopolymer Concrete after Exposure to Elevated Temperatures[J]. 2016, 36(3): 373-379. DOI： 10.13409/j.cnki.jdpme.2016.03.008.

摘要

采用钾水玻璃激发偏高岭土和粉煤灰的混合物制备地聚物。对不同水胶比（0.45、0.40、0.35）、砂率（0.25、0.30、0.35）和骨胶比（3.0、3.5、4.0）的地聚物混凝土进行常温下的抗压及劈拉强度试验

并据此优选地聚物混凝土配方

而后进行地聚物混凝土高温后的抗压及劈拉强度试验。结果表明:随温度升高

地聚物混凝土的抗压及劈拉强度逐渐降低

且在300500℃间

强度下降尤为明显;相比于抗压强度

地聚物混凝土的高温后劈拉强度降低得更快。对比文献发现

本文的地聚物混凝土高温后相对残余抗压强度要明显高于普通混凝土。根据试验结果

建立了地聚物混凝土高温后抗压强度与劈拉强度的关系式

公式计算结果与试验结果吻合较好。

Abstract

Geopolymer was prepared through potassium silicate solution activating metakaolin and fly ash blend.Compressive and splitting tensile strength tests were carried out on geopolymer concrete specimens with different water-cement ratios（0.45

0.40

0.35）

sand ratios（0.25

0.30

0.35）and aggregate-binders（3.0

3.5

4.0）at room temperature.Based on these test results

the optimal formula of geopolymer concrete was determined

and compressive and splitting tensile strength tests were conducted after exposure to elevated temperatures on geopolymer concrete prepared with the optimal formula.The test results show that compressive and splitting tensile strengt

h of geopolymer concrete decrease with an increase in temperature

especially a great decrease of strength occurs in 300

00 ℃ range.In comparison to compressive strength

the splitting tensile strength of geopolymer concrete after exposure to elevated temperatures decreases with temperatures at a higher rate.The test results on compressive strength of geopolymer concrete after exposure to elevated temperatures were compared with that of ordinary concrete from literatures.And it shows that geopolymer concrete exhibits higher compressive strength.A formula describing the relationship between the compressive and splitting strength of geopolymer concrete were built through regression analysis

and the calculation results from the formula agree well with test results.

关键词

Keywords

references

地聚物净浆、砂浆和混凝土高温后力学性能比较 [J]. 张海燕,祁术亮,曹亮. 防灾减灾工程学报 . 2015(01)

地质聚合物在高温作用后物相变化的研究 [J]. 郑娟荣,刘丽娜. 郑州大学学报(工学版) . 2007(03)

高温后静置混凝土的微观分析 [J]. 吕天启,赵国藩,林志伸,岳清瑞. 建筑材料学报 . 2003(02)

高强混凝土火灾后力学性能退化及高温爆裂机理研究 [D]. 高宇剑. 中国矿业大学 2014

高强混凝土及其应用[M]. 清华大学出版社 , 陈肇元等著, 1992

Geopolymer concrete: A review of some recent developments [J] . B. Singh,G. Ishwarya,M. Gupta,S.K. Bhattacharyya. Construction and Building Materials . 2015

Setting Time, Strength, and Bond of High-Calcium Fly Ash Geopolymer Concrete [J] . Pattanapong Topark-Ngarm,Prinya Chindaprasirt,Vanchai Sata. Journal of Materials in Civil Engineering . 2014

Compressive strength and microstructural analysis of fly ash/palm oil fuel ash based geopolymer mortar under elevated temperatures [J] . Navid Ranjbar,Mehdi Mehrali,U. Johnson Alengaram,Hendrik Simon Cornelis Metselaar,Mohd Zamin Jumaat. Construction and Building Materials . 2014

Technical and commercial progress in the adoption of geopolymer cement [J] . Jannie S.J. Van Deventer,John L. Provis,Peter Duxson. Minerals Engineering . 2011

Comparative performance of geopolymers made with metakaolin and fly ash after exposure to elevated temperatures [J] . Daniel L.Y. Kong,Jay G. Sanjayan,Kwesi Sagoe-Crentsil. Cement and Concrete Research . 2007 (12)

Engineering properties of inorganic polymer concretes （IPCs） [J] . M. Sofi,J.S.J. van Deventer,P.A. Mendis,G.C. Lukey. Cement and Concrete Research . 2006 (2)

Geopolymers and geopolymeric materials [J] . J. Davidovits. Journal of Thermal Analysis . 1989 (2)

浏览量

535

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

地聚物净浆、砂浆和混凝土高温后力学性能比较

不同温度及不同加热时间作用后混凝土力学性能试验研究

水灰比对高温下混凝土质量损失及抗压强度影响试验研究

局部喷水急速冷却下完全约束火灾高温钢梁力学响应行为

火灾高温下隧道衬砌结构的变形性能研究