基于碱激发矿渣和硅酸盐水泥的功能梯度混凝土的耐久性

周万良; 邓欢

doi:10.13204/j.gyjzG21102005

基于碱激发矿渣和硅酸盐水泥的功能梯度混凝土的耐久性

doi: 10.13204/j.gyjzG21102005

周万良^1,2,
邓欢^1,2

1. 合肥工业大学土木与水利工程学院, 合肥 230009;
2. 土木工程结构与材料安徽省重点实验室, 合肥 230009

基金项目:

合肥工业大学大学生创新创业项目(201910359035)。

详细信息

作者简介:
周万良,男,1970年出生,博士,副教授。电子信箱:zhouwanliang@sohu.com

计量
- 文章访问数: 81
- HTML全文浏览量: 5
- PDF下载量: 2
- 被引次数: 0
出版历程
- 收稿日期: 2021-10-20
- 网络出版日期: 2022-09-05

Durability of Functionally Gradient Concrete Based on Alkali Activated Slag and Portland Cement

ZHOU Wanliang^1,2,
DENG Huan^1,2

1. College of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China;
2. Anhui Key Laboratory of Civil Engineering Structures and Materials, Hefei 230009, China

摘要

摘要: 基于NaOH激发矿渣(NAS)和硅酸盐水泥(PC)配制了功能梯度混凝土(FGC),然后对其抗碳化和抗氯离子渗透性能进行了研究。用压汞法、热分析法和X射线衍射法(XRD)对NAS砂浆(或净浆)和PC砂浆(或净浆)进行了分析。结果表明:NAS有极好的抗氯离子渗透性能但抗碳化性能差,PC抗碳化性能好但抗氯离子渗透性能差;NAS混凝土表面的PC砂浆层能显著提高FGC的抗碳化性能,PC混凝土表面的NAS砂浆层能显著提高FGC抗氯离子渗透性能。
- 功能梯度混凝土 /
- NaOH激发矿渣 /
- 硅酸盐水泥 /
- 抗碳化 /
- 抗氯离子渗透
Abstract: The durability of concrete can be improved by using functional gradient structure. Functionally gradient concrete (FGC) was prepared with NaOH activated slag (NAS) and Portland cement (PC). Then the carbonation resistance and chloride ion permeability resistance of FGC were studied. At the same time, NAS mortar (or NAS paste) and PC mortar (or PC paste) were analyzed by mercury injection method, thermal analysis and X-ray diffraction(XRD). The results showed that NAS had excellent resistance to chloride ion penetration but poor resistance to carbonation, and PC had good resistance to carbonation but poor resistance to chloride ion penetration. The PC mortar layer on the surface of NAS concrete could significantly improve the carbonation resistance of FGC, and the NAS mortar layer on the surface of PC concrete could significantly improve the chloride ion penetration resistance of FGC.
- functionally graded concrete /
- NaOH-activated slag /
- portland cement /
- carbonation resistance /
- chloride penetration resistance

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