Comparative Investigations on Reactive Powder Concrete with and Without Coarse Aggregate

DOI

10.2991/978-94-6463-088-6_6How to use a DOI?

Keywords

Reactive powder concrete; Mechanical properties; Autogenous Shrinkage; Silica Fume

Abstract

Crushed dolomite with a nominal size of 8 mm and fine quartz sand with a nominal size of 2 mm were used to produce reactive powder concrete (RPC) in this study. The compressive strength is comparable to that of standard RPC with a maximum aggregate size of less than 0.6 mm. The use of crushed dolomite modified the mixing process and mechanical properties and it was easier to fluidize and homogenize RPC that contained coarse material. The mixing time can be reduced compared to standard RPC. Under compressive, tensile, and flexural stresses, both RPCs behaved similarly, with the exception of a slightly differing modulus of elasticity, which was connected to the stiffness of the utilized aggregates. The results showed that at normal curing conditions, the locally available materials produced RPC with compressive, tensile, and flexural strengths of 134.3, 11.95, and 27.75 MPa, respectively. The study also confirmed the impact of fine aggregate type content and silica fume percentage on compressive, tensile, flexural strengths of RPC and drying shrinkage. Drying shrinkage of RPC including crushed dolomite was reduced because to the decreased paste volume fraction and the impediment of the stiffer crushed dolomite. Additionally, the durability performance was improved in terms of absorption and water permeability, giving ideal use in aggressive environments and effective for corrosion resistance.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Hussein Kareem Sultan
AU  - Alaa S. Al-Husainy
AU  - Buan Anshari
PY  - 2022
DA  - 2022/12/23
TI  - Comparative Investigations on Reactive Powder Concrete with and Without Coarse Aggregate
BT  - Proceedings of the First Mandalika International Multi-Conference on Science and Engineering 2022, MIMSE 2022 (Civil and Architecture)
PB  - Atlantis Press
SP  - 41
EP  - 54
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-088-6_6
DO  - 10.2991/978-94-6463-088-6_6
ID  - Sultan2022
ER  -