International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 05 | May -2017
p-ISSN: 2395-0072
www.irjet.net
STUDY AND DESIGN OF SELF CURING CONCRETE FOR M30 GRADE Tuptewar Shriprasad Madhavrao1, Unde Rajeshwar Houshiram1, Rukare Suraj Sangappa1, Salunkhe Shubhamkumar Suresh1 Prof. Shreedhar Patil2, Prof. Mayur Tanpure2 1(Dept. of Civil Engineering , Dr. D. Y. Patil S.O.E.T., Lohegaon, Pune - 411047) 2(Dept. of Civil Engineering , Dr. D. Y. Patil S.O.E.T., Lohegaon, Pune - 411047)
---------------------------------------------------------------------***--------------------------------------------------------------------3. METHODOLOGY Abstract - Water retention of concrete containing selfcuring agents is investigated. Concrete weight loss and internal relative humidity measurements with time were carried out, in order to evaluate the water retention of selfcuring concrete. Non-evaporable water at different ages was measured to evaluate the hydration. Water transport through concrete is evaluated by measuring absorption%, permeable voids%, water absorptivity, and water permeability. The water transport through self-curing concrete is evaluated with age. The effect of the concrete mix proportions on the performance of self-curing concrete.
Stage-I: Required design for project grade (M30) Stage-II: Collection of materials as per design specifications Stage-III: Testing of materials Stage-IV: Casting of cubes (both conventional and special type) Stage-V: Curing of conventional concrete cubes
Key Words: Poly ethylene glycol, super absorbent polymers i.e. wood fibres, water retention.
Stage-VI: Testing of cubes Stage-VII: Interpretations of results and conclusions
1. INTRODUCTION
EXPLAINATION
Concrete is the basic engineering material used in most of the civil engineering structures. It is basic engineering material in construction because of its economy of use, good durability and easily manufactured at site. Concrete needs to be designed for various properties like workability, durability and strength. The concept of self-curing agents is to reduce the water evaporation from concrete, and hence increase the water retention capacity of the concrete compared to conventional concrete. It was found that water soluble polymers (poly ethylene glycol) can be used as selfcuring agents in concrete. Proper curing is necessary to achieve desired strength and performance of concrete. In conventional concrete curing is done by after various stages like mixing, placing and finishing. Self-Curing is a technique which is used to provide proper moisture contents in concrete for better hydration for a long time.
Stage-I: Required design for project grade (M30). Prepare a concrete mix design for M30 grade concrete as per IS 10262-2009. From design mix proportion is as follow. Sand
Aggregate
1
1.6
2.59
Stage-II: Collection of materials as per design specifications. Collection of all the material as per designed quantity i.e. Cement, Sand, Aggregate and PEG (poly ethylene glycol).
2. OBJECTIVES 1.
To minimize the quantity of water required.
2.
To use shrinkage reducing admixture PEG and SAP molecules in concrete which helps in self-curing.
3.
To study the mechanical characteristics of concrete such as compressive strength, split tensile strength etc.
Š 2017, IRJET
Cement
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Impact Factor value: 5.181
Stage-III: Testing of materials: Conduct the entire test on materials i.e. consistency and initial & final setting time test on cement. Abrasion value test, impact value test, crushing value test on coarse aggregate and sieve analysis on sand. Stage-IV: Casting of cubes (both conventional and special type). Casting of cubes both conventional and special type using ratio of material as per design.
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ISO 9001:2008 Certified Journal
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