Effect of coarse cement particles on the self-healing of dense concretes

被引：18

作者：

Rahmani, Hamid ^{[1
]}

Bazrgar, Hamed ^{[1
]}

机构：

[1] Univ Yasuj, Dept Civil Engn, Coll Engn, Yasuj, Iran

来源：

MAGAZINE OF CONCRETE RESEARCH | 2015年 / 67卷 / 09期

关键词：

PERMEABILITY; CRACKS;

D O I：

10.1680/macr.14.00158

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The self-healing ability of dense concretes was investigated by adding coarse cement particles to the mixtures as a self-healing agent. Longitudinal cracks were created in cylindrical samples after 28 d of curing using the split test method. The cylindrical specimens were then fastened using metal rings in such a manner that the crack width was set to 200 mu m and the specimens were cured in water for the second stage. The secondary tensile strength and water passing through the cracked specimens were then investigated. In addition, the hydration degree was measured as an explanation of self-healing rates. The results show that the use of coarse cement particles recovers tensile strength by up to 38% and also decreases the water passing rate by up to 100%.

引用

页码：476 / 486

页数：11

共 50 条

[1] Encapsulation of cement particles for self-healing mortars
Sun, Dawei
Wang, Jiaxin
Li, Maoshuo
Li, Wenjuan
Ma, Wenxu
Chen, Zhen
Wang, Yali
Cui, Suping
COMPOSITES PART B-ENGINEERING, 2025, 297
[2] A preliminary study on an effective and simplistic self-healing concept for cement using coarse clinker particles as the healing agent
Wang, Jialiang
Wu, Min
CEMENT AND CONCRETE RESEARCH, 2025, 193
[3] Chloride Transport Characterisation in Self-healing Concretes
Dabral, Kiran
Camacho, Esteban
Serna, Pedro
Alonso, Macria Cruz
SMART & SUSTAINABLE INFRASTRUCTURE: BUILDING A GREENER TOMORROW, ISSSI 2023, 2024, 48 : 697 - 710
[4] Effect of sustained service loads on the self-healing and corrosion of bacterial concretes
Mirshahmohammad, Mohammad
Rahmani, Hamid
Maleki-Kakelar, Mahdi
Bahari, Abbas
CONSTRUCTION AND BUILDING MATERIALS, 2022, 322
[5] Assessment of self-healing and durability parameters of concretes incorporating crystalline admixtures and Portland Limestone Cement
Azarsa, Pejman
Gupta, Rishi
Biparva, Alireza
CEMENT & CONCRETE COMPOSITES, 2019, 99 : 17 - 31
[6] Influence of Cement Coarse Particle on the Self-Healing Ability of Concrete Based on Ultrasonic Method
Li Zhiqiang
Zhou Zonghui
Xu Dongyu
Yu Jinghua
TESTING AND EVALUATION OF INORGANIC MATERIALS I, 2011, 177 : 526 - +
[7] Self-Healing Efficiency of Concretes through Permeability to Chlorides
Hollmann, C. F.
Zucchetti, L.
Dal Molin, D. C. C.
Masuero, A. B.
ACI MATERIALS JOURNAL, 2023, 120 (05) : 79 - 88
[8] Bacillus Subtilis as Self-Healing Agent in Cement Mortar: Combined and the Separate Effect of Bacteria and Calcium Lactate on Self-Healing Behavior in Cement Mortar
Muhammad, Sohail
Siddiqui, Humair Ahmed
Abro, Muhammad Ishaque
Usmani, Adil
Malik, Muhammad Amjad Anwar
MEHRAN UNIVERSITY RESEARCH JOURNAL OF ENGINEERING AND TECHNOLOGY, 2021, 40 (02) : 426 - 434
[9] Self-healing effect of hydrogels in cement slag and fly ash pastes
Vafaei, Babak
Ghahremaninezhad, Ali
CONSTRUCTION AND BUILDING MATERIALS, 2024, 438
[10] The Effect of Exposure on the Autogenous Self-Healing of Ordinary Portland Cement Mortars
Rajczakowska, Magdalena
Habermehl-Cwirzen, Karin
Hedlund, Hans
Cwirzen, Andrzej
MATERIALS, 2019, 12 (23)

← 1 2 3 4 5 →