Strength and durability of self-curing concrete developed using calcium lignosulfonate

被引：7
作者：
Ali Khan R. [1 ]
Gupta C. [1 ]
Alam S. [2 ]
机构：
[1] Department of Civil Engineering, Sharda University, Uttar Pradesh, Greater Noida
[2] Department of Civil Engineering, Chandigarh University, Punjab, Mohali
来源：
Journal of King Saud University - Engineering Sciences | 2022年 / 34卷 / 08期
关键词：
Calcium lignosulfonate; Durability; Mechanical property; Self-curing; Water penetration resistance;
D O I：
10.1016/j.jksues.2021.02.002
中图分类号：
学科分类号：
摘要：
A large quantity of water is required during the conventional curing methods. This becomes challenging in the areas facing water scarcity and for concreting work in high-rise structures. This work presents a solution for the need for concrete that does not require extra water for curing. In the proposed solution, calcium lignosulfonate in different percentages was introduced as a self-curing agent in fresh concrete. The hardened concrete with calcium lignosulfonate was cured at ambient conditions, whereas the hardened concrete without calcium lignosulfonate was submerged in water for curing. The properties of fresh and hardened concrete with and without calcium lignosulfonate are compared. The results show a continuous increase in the slump with the increase in calcium lignosulfonate. However, 0.3% calcium lignosulfonate is identified as the optimum percentage for the desired mechanical property. The durability under a saline environment is studied in terms of loss in strength. Further, the change in strength is correlated with the mineralogical changes studied using X-ray diffraction results. © 2021 King Saud University
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页码：536 / 543
页数：7
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