Strength and durability of self-curing concrete developed using calcium lignosulfonate
| Autor: | Rayees Ali Khan, Shamshad Alam, Chhavi Gupta |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Mechanical property
Environmental Engineering Curing (food preservation) Materials science 020209 energy General Chemical Engineering Mechanical Engineering 0211 other engineering and technologies General Engineering 02 engineering and technology Calcium lignosulfonate Durability Catalysis Slump Self curing 021105 building & construction 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Composite material Civil and Structural Engineering High rise |
| Zdroj: | Journal of King Saud University - Engineering Sciences. 34:536-543 |
| ISSN: | 1018-3639 |
| DOI: | 10.1016/j.jksues.2021.02.002 |
| Popis: | 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. In this work, we present a solution for the need of concrete which does not require extra water for curing. In the proposed solution, calcium lignosulfonate in different percentage was introduced as a self-curing agent in fresh concrete. The hardened concrete with calcium lignosulfonate was cured at ambient condition 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 slump with the increase in calcium lignosulfonate, however, 0.3% calcium lignosulfonate is identified as an optimum percentage for desired mechanical property. The durability under saline environment is studied in term of loss in strength. Further, the change in strength is correlated with the mineralogical changes studied using X-ray diffraction results. |
| Databáze: | OpenAIRE |
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