A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bond behavior of reinforcement in Lightweight Aggregate Self-Compacting Concrete
https://orcid.org/0000-0002-5828-5219
HighlightsPumice sand replacement with normal-weight one considerably increases bond strength.All-LWASCC bond strength (splitting) is by approx. 80% lower than that of NWSCC.All-LWASCC bond strength (pull-out) is by max. 30% lower than that of NWSCC.Bond length increase leads to decreasing of the max. normalized bond stress, .Increase of bar dia. increases/decreases for pull-out/beam tests, respectively.
AbstractAn investigation of the steel-to-concrete bond in Lightweight Aggregate Self-Compacting Concrete (LWASCC, comprising exclusively pumice aggregates) is presented based on direct pull-out and beam tests. Experimental parameters include: rebar diameter, bond length and type of additive used in the LWASCC mixture. The results are compared with those obtained from identical specimens made of: (i) pumice aggregate self-compacting concrete (PASCC) with normal-weight sand and (ii) normal-weight SCC (NWSCC). The majority of specimens exhibited failures due to splitting (at relatively low slips) and rebar pull-out for direct pull-out and beam tests, respectively. Empirical formulations are used to predict experimentally derived bond strengths.
Bond behavior of reinforcement in Lightweight Aggregate Self-Compacting Concrete
https://orcid.org/0000-0002-5828-5219
HighlightsPumice sand replacement with normal-weight one considerably increases bond strength.All-LWASCC bond strength (splitting) is by approx. 80% lower than that of NWSCC.All-LWASCC bond strength (pull-out) is by max. 30% lower than that of NWSCC.Bond length increase leads to decreasing of the max. normalized bond stress, .Increase of bar dia. increases/decreases for pull-out/beam tests, respectively.
AbstractAn investigation of the steel-to-concrete bond in Lightweight Aggregate Self-Compacting Concrete (LWASCC, comprising exclusively pumice aggregates) is presented based on direct pull-out and beam tests. Experimental parameters include: rebar diameter, bond length and type of additive used in the LWASCC mixture. The results are compared with those obtained from identical specimens made of: (i) pumice aggregate self-compacting concrete (PASCC) with normal-weight sand and (ii) normal-weight SCC (NWSCC). The majority of specimens exhibited failures due to splitting (at relatively low slips) and rebar pull-out for direct pull-out and beam tests, respectively. Empirical formulations are used to predict experimentally derived bond strengths.
Bond behavior of reinforcement in Lightweight Aggregate Self-Compacting Concrete
https://orcid.org/0000-0002-5828-5219
HighlightsPumice sand replacement with normal-weight one considerably increases bond strength.All-LWASCC bond strength (splitting) is by approx. 80% lower than that of NWSCC.All-LWASCC bond strength (pull-out) is by max. 30% lower than that of NWSCC.Bond length increase leads to decreasing of the max. normalized bond stress, .Increase of bar dia. increases/decreases for pull-out/beam tests, respectively.
AbstractAn investigation of the steel-to-concrete bond in Lightweight Aggregate Self-Compacting Concrete (LWASCC, comprising exclusively pumice aggregates) is presented based on direct pull-out and beam tests. Experimental parameters include: rebar diameter, bond length and type of additive used in the LWASCC mixture. The results are compared with those obtained from identical specimens made of: (i) pumice aggregate self-compacting concrete (PASCC) with normal-weight sand and (ii) normal-weight SCC (NWSCC). The majority of specimens exhibited failures due to splitting (at relatively low slips) and rebar pull-out for direct pull-out and beam tests, respectively. Empirical formulations are used to predict experimentally derived bond strengths.
Bond behavior of reinforcement in Lightweight Aggregate Self-Compacting Concrete
Kaffetzakis, Michael I. (author) / Papanicolaou, Catherine G. (author)
Construction and Building Materials ; 113 ; 641-652
2016-03-17
12 pages
Article (Journal)
Electronic Resource
English
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