Self-curing (Internally cured) concrete using porous light weight aggregates : A better solution for the sustainable development
By: Patil, Dada S
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Contributor(s): Anadinni, Shrishail B.
Publisher: Thane ACC LTD July, 2019Edition: Vol.93 Issue 07.Description: 55-62p.Subject(s): Civil Engineering
In:
Indian concrete journalSummary: Proper curing of concrete structures is very important to meet performance & durability requirements. Curing allows continuous cement hydration & subsequently continuous gain in the strength. Lack of proper moisture conditions virtually slows down the hydration of the cement. Hydration practically stops when the RH within the pores falls below 80%. The conventional curing is achieved by externally applied water after hardening of concrete. Concrete must be properly cured if its optimum properties are to be developed. This reduces porosity to a level such that the desired strength & durability can be attained & volume changes in the concrete due to shrinkage are minimized. Concrete which dries out quickly undergoes considerable early age drying shrinkage. This is a primary reason for weak, powdery surfaces with low abrasion resistance. Lack of proper curing increases permeability & absorptivity. This affects the durability of concrete. Permeability & absorptivity are the functions of porosity of the concrete. Durability depends on whether these pores & capillaries are discrete or interconnected.
| Item type | Current location | Call number | Status | Date due | Barcode | Item holds |
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Articles Abstract Database
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School of Engineering & Technology (PG) Archieval Section | Not for loan | 2018640 |
Proper curing of concrete structures is very important to meet performance & durability requirements. Curing allows continuous cement hydration & subsequently continuous gain in the strength. Lack of proper moisture conditions virtually slows down the hydration of the cement. Hydration practically stops when the RH within the pores falls below 80%. The conventional curing is achieved by externally applied water after hardening of concrete. Concrete must be properly cured if its optimum properties are to be developed. This reduces porosity to a level such that the desired strength & durability can be attained & volume changes in the concrete due to shrinkage are minimized. Concrete which dries out quickly undergoes considerable early age drying shrinkage. This is a primary reason for weak, powdery surfaces with low abrasion resistance. Lack of proper curing increases permeability & absorptivity. This affects the durability of concrete. Permeability & absorptivity are the functions of porosity of the concrete. Durability depends on whether these pores & capillaries are discrete or interconnected.
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