[1]宋学锋,朱娟娟.粉煤灰-矿渣复合基地质聚合物力学性能的影响因素[J].西安建筑科技大学学报：自然版,2016,48(01):128-132.[doi:10.15986/j.1006-7930.2016.01.021]
　SONG Xuefeng,ZHU Juanjuan.The factors affecting the mechanical properties of fly ash and slag based geopolymer[J].J.Xi’an Univ. of Arch. & Tech.：Natural Science Edition,2016,48(01):128-132.[doi:10.15986/j.1006-7930.2016.01.021]
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粉煤灰-矿渣复合基地质聚合物力学性能的影响因素()
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西安建筑科技大学学报：自然版[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年01期
页码:
128-132
栏目:
出版日期:
2016-02-28

文章信息/Info

Title:
The factors affecting the mechanical properties of fly ash and slag based geopolymer
文章编号:
1006-7930(2016)01-0128-05
作者:
宋学锋; 朱娟娟
西安建筑科技大学材料与矿资学院，陕西 西安 710055
Author(s):
SONG Xuefeng;  ZHU Juanjuan
School of Materials & Mineral Resources, Xi′an Univ. of Arch. & Tech., Xi′an 710055, China
关键词:
粉煤灰; 地质聚合物; 胶凝材料; 抗压强度
Keywords:
fly ash;  geopolymer;  cementitious materials;  compressive strength
分类号:
TU528.2
DOI:
10.15986/j.1006-7930.2016.01.021
文献标志码:
A
摘要:
地质聚合物作为一种新型的绿色胶凝材料，与硅酸盐水泥相比，地质聚合物具有环境友好、耐高温、耐久性好等优点．本实验采用工业固体废物粉煤灰和矿渣，配以石英砂和碱硅酸盐激发剂，制备得到地质聚合物材料．以制品抗压强度为指标，研究了粉煤灰与矿渣复合比、碱硅酸盐激发剂的模数与固含量、以及液胶比对地质聚合物性能的影响规律．结果表明：随着粉煤灰占总胶凝材料比例的增加，体系中CaO 的含量降低，地质聚合物的抗压强度逐渐降低；当碱硅酸盐激发剂固含量为32%时，地聚物抗压强度随其模数的增大表现为先增大后减小，当模数为1.2 时，试样7 d 抗压强度达到94.9 MPa；对于液胶比，随液胶比的增大，地聚物的抗压强度先增大后减小，液胶比为0.48 时，抗压强度最大．
Abstract:
Geopolymer is a new type of green cementitious materials, compared with Portland cement, geopolymer has many excellent properties, such as environment friendly, high temperature resistance, good durability, etc. In this experiment, geopolymer materials was prepared by the industrial solid wastes fly ash and slag, with quartz sand and alkali silicate activator. The compressive strength of the products as the index and the influence of the fly ash and slag composite ratio, liquid-binder ratio, modulus of alkali silicate activator and solid cotent on the properties of geopolymer were investigated. The results indicated that the compressive strength of geopolymer decreased gradually with the increase of the proportion of the fly ash of the total cementitious material; With the increase of the modulus, the compressive strength of geopolymer increased at first and then decrease when the solid content of alkali silicate activator is 32%; When the modulus of activator was 1.2,the 7d compressive strength of the products was reached 94.4MPa.For liquid-binder ratio, with the increase of the ratio of liquid to binder, thecompressive strength of the products first increase and gradually decrease. When the ratio of liquid to binder was 0.48, the compressive strength of the products was the largest.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2015-07-28 修改稿日期：2016-01-26
基金项目：陕西省自然科学基金资助项目(2013JQ6015)；陕西省住建厅基金资助项目(2015-K86)
作者简介：宋学锋(1976-)，男，博士，教授，主要从事先进水泥基材料方面研究．E-mail:songxuefeng@xauat.edu.cn
更新日期/Last Update: 2016-04-02