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泡沫掺量对发泡碱激发矿渣聚合物性能和孔隙特征的影响

宋学锋 杨萍

硅酸盐通报2017,Vol.36Issue(3):905-909,5.
硅酸盐通报2017,Vol.36Issue(3):905-909,5.

泡沫掺量对发泡碱激发矿渣聚合物性能和孔隙特征的影响

Effect of Foam Content on the Properties and Pore Structure of Foamed Slag-based Geopolymer

宋学锋 1杨萍1

作者信息

  • 1. 西安建筑科技大学材料与矿资学院,西安 710055
  • 折叠

摘要

Abstract

Alkali activated slag cement was used to prepare a foamed concrete, with compressed air foaming process.The pore structures of the foamed concretes were investigated by image process software(Image-Pro plus, IPP).The effects of foam content on the dry density, compressive strength and thermal conductivity of foamed slag-based geopolymers were studied.The results show that porosity, average pore diameter and roundness increase, when foam content increase from 4.45%-10.70%.A good negative exponent relationship between foam content and the main properties of the foamed slag-based geopolymers was observed.The dry density, compressive strength and thermal conductivity were in the range of 389-1325 kg/m3, 1.12-17.81 MPa, 0.0813-0.2211 W/(m·K), respectively, when foam content increased from 4.45%-12.00%.In comparison to Portland cement foam concrete,foamed slag-based geopolymers presented a lower thermal conductivity and a higher compressive strength.

关键词

发泡碱激发矿渣聚合物/泡沫掺量/孔结构/抗压强度/导热系数

Key words

slag-based geopolymer/foam content/pore structure/compressive strength/thermal conductivity

分类

建筑与水利

引用本文复制引用

宋学锋,杨萍..泡沫掺量对发泡碱激发矿渣聚合物性能和孔隙特征的影响[J].硅酸盐通报,2017,36(3):905-909,5.

基金项目

陕西省自然科学基金资助项目(2013JQ6015) (2013JQ6015)

陕西省住建厅基金资助项目(2015-K86) (2015-K86)

硅酸盐通报

OA北大核心CSCDCSTPCD

1001-1625

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