TY - GEN
T1 - Dynamic Compressive Behavior of Recycled Bricks Aggregate Concrete Under SHPB Tests
AU - Xiong, Beibei
AU - Demartino, Cristoforo
AU - Marano, Giuseppe Carlo
AU - Di Tranpani, Fabio
AU - Xu, Jinjun
AU - Xiao, Yan
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2022
Y1 - 2022
N2 - The growth of urbanization in the last decades has already created a considerable number of Construction and Demolition Waste (CDW) materials. Concrete, bricks, glass, and tiles are widely used in residential construction accounting for a large proportion of CDW. The use of CDW as aggregates in the new concrete mixture has been recognized as an attractive approach to conserve natural resources and reduce the environmental influence of the construction industry. Nowadays the application of crushed bricks as coarse aggregate has recently been a reasonable target of research. However, construction structure and material can be subjected to vehicular impacts (e.g., cars, trucks, trains, boats, aircraft, etc.) and to other complex fast varying dynamic loads during their service life. Given that response of different aggregate concrete can be quite different due to its sensitivity to strain rate effects, the high-strain rate compressive behavior of recycled bricks aggregate concrete (RBC) is with little attention yet, the availability of this data is crucial for the definition of the constitutive laws accounting for the strain rate effects and allows for the evaluation of the structural response under fast varying loads such as impacts and blasts. The dynamic compressive behavior of RBC under high strain rate is investigated by large diameter Split-Hopkinson Pressure Bar (SHPB, diameter is 155 mm) in this study. Specimens are prepared by four different substitution levels respectively, from 0% (natural plain concrete) to 100% (all coarse aggregate is substituted by crushed bricks). A total of 36 specimens (with a diameter of 150 mm, and a height of 75 mm) are tested under three different air pressure corresponding to three strain rates. Tests can reach a maximum strain rate of 100 s−1. The stress-strain relationships and the dynamic increase factor (DIF) for RBC under different strain rates are obtained and discussed. The results show that RBC is quite strain-rate sensitive constructional material.
AB - The growth of urbanization in the last decades has already created a considerable number of Construction and Demolition Waste (CDW) materials. Concrete, bricks, glass, and tiles are widely used in residential construction accounting for a large proportion of CDW. The use of CDW as aggregates in the new concrete mixture has been recognized as an attractive approach to conserve natural resources and reduce the environmental influence of the construction industry. Nowadays the application of crushed bricks as coarse aggregate has recently been a reasonable target of research. However, construction structure and material can be subjected to vehicular impacts (e.g., cars, trucks, trains, boats, aircraft, etc.) and to other complex fast varying dynamic loads during their service life. Given that response of different aggregate concrete can be quite different due to its sensitivity to strain rate effects, the high-strain rate compressive behavior of recycled bricks aggregate concrete (RBC) is with little attention yet, the availability of this data is crucial for the definition of the constitutive laws accounting for the strain rate effects and allows for the evaluation of the structural response under fast varying loads such as impacts and blasts. The dynamic compressive behavior of RBC under high strain rate is investigated by large diameter Split-Hopkinson Pressure Bar (SHPB, diameter is 155 mm) in this study. Specimens are prepared by four different substitution levels respectively, from 0% (natural plain concrete) to 100% (all coarse aggregate is substituted by crushed bricks). A total of 36 specimens (with a diameter of 150 mm, and a height of 75 mm) are tested under three different air pressure corresponding to three strain rates. Tests can reach a maximum strain rate of 100 s−1. The stress-strain relationships and the dynamic increase factor (DIF) for RBC under different strain rates are obtained and discussed. The results show that RBC is quite strain-rate sensitive constructional material.
KW - DIF
KW - Dynamic compressive behavior
KW - Recycled bricks aggregate concrete
KW - SHPB
KW - Strain rate
UR - http://www.scopus.com/inward/record.url?scp=85121906771&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-91877-4_136
DO - 10.1007/978-3-030-91877-4_136
M3 - 会议稿件
AN - SCOPUS:85121906771
SN - 9783030918767
T3 - Lecture Notes in Civil Engineering
SP - 1197
EP - 1206
BT - Proceedings of the 1st Conference of the European Association on Quality Control of Bridges and Structures - EUROSTRUCT 2021
A2 - Pellegrino, Carlo
A2 - Faleschini, Flora
A2 - Zanini, Mariano Angelo
A2 - Matos, José C.
A2 - Casas, Joan R.
A2 - Strauss, Alfred
PB - Springer Science and Business Media Deutschland GmbH
T2 - 1st Conference of the European Association on Quality Control of Bridges and Structures, EUROSTRUCT 2021
Y2 - 29 August 2021 through 1 September 2021
ER -