Properties of Pavement Quality Concrete Prepared with Recycled Coarse Aggregate
P. Murthi1, Almas Khan2, K. Poongodi3, R. Gobinath4
1Dr.P.Murthi*, Professor, Centre for Construction methods and Materials, Department of Civil Engineering, S R Engineering College, Warangal.
2Almas Khan, Final year UG student, Department of Civil Engineering, S R Engineering College, Warangal.
3Dr. K.Poongodi, Professor, Department of Civil Engineering, S R Engineering College, Warangal.
4Dr. R.Gobinath, Professor and Head, Department of Civil Engineering, S R Engineering College, Warangal.
Manuscript received on January 01, 2020. | Revised Manuscript received on January 20, 2020. | Manuscript published on January 30, 2020. | PP: 3186-3192 | Volume-8 Issue-5, January 2020. | Retrieval Number: D9738118419/2020©BEIESP | DOI: 10.35940/ijrte.D9738.018520
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The investigation is intended to evaluate the impact of substitution of demolished concrete debris as coarse aggregate (CA) in pavement quality concrete (PQC). The strength characteristics of PQC such as compressive strength, tensile strength, flexural strength and impact strength after adding recycled coarse aggregate (RCA) are experimentally determined in laboratory environment. Specimens of M30 grade concrete were prepared and tested. The RCA was substituted up to 50% by replacing CA content. Based on the investigation results, it was found that reduction of slump value due to the substitution of RCA in concrete. There is no remarkable reduction of compressive strength and flexural strength up to 30% and 40 % replacement of CA respectively in all the curing periods. The impact strength was reduced due to addition of RCA and observed 8% reduction after adding 20% RCA. It is suggested that RCA may be used up to 20% as CA in PQC.
Keywords: Pavement Quality Concrete, Recycled Aggregate, Flexural Strength, Impact Strength.
Scope of the Article: Software & System Quality of Service.