非晶态生成物含量对粉煤灰基地质聚合物强度的影响

杨昆; 杜守继; 韩宇栋; 侯东伟

doi:10.13204/j.gyjzG20052522

非晶态生成物含量对粉煤灰基地质聚合物强度的影响

doi: 10.13204/j.gyjzG20052522

杨昆¹,
杜守继^1,2,
韩宇栋³,
侯东伟^1,2, ,

1. 上海交通大学土木工程系, 上海 200240;
2. 上海市公共建筑和基础设施数字化运维重点实验室, 上海 200240;
3. 中冶建筑研究总院有限公司, 北京 100088

基金项目:

国家重点研究发展计划（2016YFC0701003）；国家自然科学基金项目（51479113）；国防科技创新特区"珊瑚骨料混凝土"项目。

详细信息

作者简介:
杨昆,男,1995年出生,硕士研究生。

通讯作者:
侯东伟,houdw@sjtu.edu.cn。

计量
- 文章访问数: 111
- HTML全文浏览量: 14
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2020-05-25
- 网络出版日期: 2021-07-17

INFLUENCE OF CONTENTS OF PRODUCTED AMORPHOUS SUBSTRACTS ON STRENGTH OF FLYASH GEOPOLYMER

YANG Kun¹,
DU Shouji^1,2,
HAN Yudong³,
HOU Dongwei^{1,2
, ,}

1. Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
2. Shanghai Key Laboratory for Digital Maintenance of Buildings and Infrastructure, Shanghai 200240, China;
3. Central Research Institute of Building and Construction Co., Ltd., MCC Group, Beijing 100088, China

摘要

摘要: 从生成物晶态或非晶态含量的角度出发，讨论粉煤灰基地质聚合物强度的影响因素。首先通过对碱性激发剂配比优化制备出高强粉煤灰基地质聚物，并在不同养护温度和养护龄期下获得不同的强度水平；然后利用扫描电子显微镜对地质聚合物的微观形貌进行分析，基于X射线衍射全谱拟合法对地质聚合物的矿相成分做定量分析，确定晶态或无定型态成分含量；最后分析地质聚合物无定型态成分含量与强度的相关性。结果表明：非晶态生成物含量与粉煤灰基地质聚合物强度正向相关。
- 地质聚合物 /
- 抗压强度 /
- 非晶体相
Abstract: The relation between contents of crystalline or amorphous phase and compressive strength were discussed to further understand the mechanisms of flyash matrix geopolymer. Firstly, a kind of high strength flyash matrix geopolymer was prepared based on parameter optimization for alkaline activators, and specimens of different strength cured in different temperatures and for ages were prepared. Then, the microstructure of the specimens was scanned with SEM; meanwhile, the mineral quantitative ingredients of the geopolymers were analyzed by XRD-Rietveld, and the contents of crystalline or amorphous phase in geopolymers were determined. Based on the XRD results, the correlations between contents of amorphous phase substracts and strength were analyzed. The results showed that the contents of amorphous phase substracts were in a positive correlation with the strength of geoploymers.
- geopolymer /
- compressivestrength /
- amorphous phase

HTML全文

参考文献(19)

WEI J, CEN K. Empirical Assessing Cement CO₂ Emissions Based on China's Economic and Social Development During 2001-2030[J]. Science of the Total Environment, 2019, 653:200-211.

DAVIDOVITS J, SAWYER J L. Early High-Strength Mineral Polymer:US4509985[P]. 1985-04-09.

DAVIDOVITS J. Mineral Polymers and Methods of Making Them:US4349386[P]. 1982-09-14.

DAVIDOVITS J. Synthetic Mineral Polymer Compound of the Silicoaluminates Family and Preparation Process:US4472199[P]. 1984-09-18.

DAVIDOVITS J, DAVIDOVICS M. Geopolymer-Room-Temperature Ceramic Matrix for Composites[J]. Ceram. Eng. Sci. Proc., 1988, 9(12):835-841.

DAVIDOVITS J. Geopolymers:Inorganic Polymeric New Materials[J]. Journal of Thermal Analysis and Calorimetry, 1991, 37(8):1633-1656.

DAVIDOVITS J. Geopolymers and Geopolymeric Materials[J]. Journal of Thermal Analysis, 1989, 35(2):429-441.

DAVIDOVITS J. 地聚合物化学及应用[M]. 王克俭,译. 北京:国防工业出版社, 2011:173-191.

张云升. 高性能地聚合物混凝土结构形成机理及其性能研究[D]. 南京:东南大学, 2003:114-118.

张云升, 孙伟, 沙建芳,等. 粉煤灰地聚合物混凝土的制备及其特性[J]. 混凝土与水泥制品, 2003(2):13-15.

陈奇侠. 地聚物多孔材料的制备与性能研究[D]. 西安:西安建筑科技大学, 2017:17-22.

VAN JAARSVELD J G S, VAN DEVENTER J S J, LUKEY G C. A Comparative Study of Kaolinite Versus Metakaolinite in Fly Ash Based Geopolymers Containing Immobilized Metals[J]. Chemical Engineering Communications, 2004, 191(4):531-549.

XU H, DEVENTER J S J V. Geopolymerisation of Multiple Minerals[J]. Minerals Engineering, 2002, 15(12):1131-1139.

XU H, VAN D J S J. The Geopolymerisation of Alumino-Silicate Minerals[J]. International Journal of Mineral Processing, 2000, 59(3):247-266.

贾屹海. Na-粉煤灰地质聚合物制备与性能研究[D]. 北京:中国矿业大学(北京), 2009:35-39.

高婉琪. 粉煤灰基地聚物的研究及地聚物多孔材料的制备[D]. 天津:天津大学, 2014:19-22.

HWANG C L, HUYNH T P. Effect of Alkali-Activator and Rice Husk Ash Content on Strength Development of Fly Ash and Residual Rice Husk Ash-Based Geopolymers[J]. Construction and Building Materials, 2015, 101:1-9.

FERNÁNDEZ-JIMÉNEZ A, PALOMO A, CRIADO M. Microstructure Development of Alkali-Activated Fly Ash Cement:A Descriptive Model[J]. Cement & Concrete Research, 2005, 35(6):1204-1209.

HOU D W, LI D Y, HUA P C, et al. Statistical Modelling of Compressive Strength Controlled by Porosity and Pore Size Distribution for Cementitious Materials[J]. Cement & Concrete Composites, 2019,96:11-20.

施引文献

资源附件(0)

访问统计