Influence of Recycled High-Performance Aggregate on Deformation and Load-Carrying Capacity of Reinforced Concrete Beams

Barbara Sadowska-Buraczewska , Danuta Barnat-Hunek , Małgorzata Szafraniec

Abstract

The use of recycled concrete aggregates (RCA) in high performance concrete (HPC) was analyzed. The paper presents the experimental studies of model reinforced concrete beams with a rectangular section using high-performance recycled aggregates. Two variable contents of recycled aggregate concrete were used in this study: 50% and 100%. The experimental analyses conducted as immediate studies concerned the following issues: short time loads-deflection, load-carrying capacity of beams, deformation of concrete, cracks, and long-term loads-deflection. The comparative analysis involves the behavior of beams made of high performance concrete-high strength concrete (HPC-HSC) recycled aggregates with model control elements made of regular concrete based on natural aggregates. The deflection values for the recycled aggregate beams were 20% higher than in the case of the control beams made of HPC-HSC exclusively. Replacement of aggregate with recycled concrete aggregate resulted in a large decrease in the value of these two parameters, i.e., compression strength by about 42% and modulus of elasticity by about 33%.
Author Barbara Sadowska-Buraczewska (FCEE / DBSA)
Barbara Sadowska-Buraczewska,,
- Department of Building Structures and Architecture
, Danuta Barnat-Hunek
Danuta Barnat-Hunek,,
-
, Małgorzata Szafraniec
Małgorzata Szafraniec,,
-
Journal seriesMaterials, ISSN 1996-1944, (N/A 140 pkt)
Issue year2020
Vol13
No1
Pages1-18
Publication size in sheets0.85
ASJC Classification2500 General Materials Science
DOIDOI:10.3390/ma13010186
URL https://www.mdpi.com/1996-1944/13/1/186
Internal identifierROC 19-20
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa (CC-BY); with publication
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 14-02-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.285; WoS Impact Factor: 2018 = 2.972 (2) - 2018=3.532 (5)
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