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

ZHOU Wanliang; DENG Huan

doi:10.13204/j.gyjzG21102005

Volume 52 Issue 6

Sep. 2022

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ZHOU Wanliang, DENG Huan. Durability of Functionally Gradient Concrete Based on Alkali Activated Slag and Portland Cement[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(6): 162-166,113. doi: 10.13204/j.gyjzG21102005

Citation:

ZHOU Wanliang, DENG Huan. Durability of Functionally Gradient Concrete Based on Alkali Activated Slag and Portland Cement[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(6): 162-166,113. doi: 10.13204/j.gyjzG21102005

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

doi: 10.13204/j.gyjzG21102005

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

Received Date: 2021-10-20
Available Online: 2022-09-05

Abstract

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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References(31)

References

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