Effect of fly ash on the self-healing capability of cementitious materials with crystalline admixture under different conditions
Source abstract
Abstract
The self-healing capability of cracks plays an important role in improving the durability of concrete. This study investigated the the self-healing capability of mortar with crystalline admixture and fly ash under three conditions. The compressive strength, water absorption, and surface crack pattern were used to evaluate self-healing capability of mortar, and the composition of the healing products was analyzed by x-ray diffraction and scanning electron microscopy. The results indicated that the crystalline admixture could improve the self-healing capability of cementitious materials but caused a negative effect if adding too great an amount of fly ash (≥20%). The specimen that was immersed in water showed favorable self-healing capability of cracks. The healing products in cracks are mainly composed of CaCO3.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Microbial Applications in Construction Materials · Concrete and Cement Materials Research · Concrete Corrosion and Durability
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Materials Science and Engineering, Xi’an University of Architecture and Technology 1 , Xi’an 710055, China
Northwest Institute of Nuclear Technology 2 , Xi’an 710024, China
CCCC First Highway Consultants Co., Ltd. 3 , Xi’an 710075, China
Funding
Natural Science Foundation of Shaanxi Province
References (46)
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