Characteristics of Expansive Concretes Incorporating Calcium Sulfo-aluminate and Aluminum Powder for Structural Applications

Author's Department

Construction Engineering Department

Second Author's Department

Construction Engineering Department

Third Author's Department

Construction Engineering Department

Fourth Author's Department

Construction Engineering Department

Fifth Author's Department

Construction Engineering Department

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https://doi.org/10.1007/978-3-031-96767-2_2

All Authors

Adham Elsayed Nadine Ahmed Yasmin Moharram Jonathan Nabil Mohamed Abdelfattah Salah Elgamal Mohamed Darwish Mohamed Nagib AbouZeid

Document Type

Research Article

Publication Title

Lecture Notes in Civil Engineering

Publication Date

1-1-2025

doi

10.1007/978-3-031-96767-2_2

Abstract

Expansive agents have been developed decades ago with further development and incorporation within various Portland cement concrete applications. In this study, calcium sulfo-aluminate (CSA) and aluminum powder were evaluated as expansive concrete agents. The experimental program involved testing of fresh and hardened concrete properties including slump, compressive, and splitting tensile strength. Furthermore, the potential of the expansive agents in repairing beams was assessed experimentally together with the degree of expansion achieved by each of the two studied agents. Finally, non-destructive tests were conducted in order to assess the degree of porosity of the mixtures containing expansive agents. The results reveal that the two expansive agents yield promising results in terms of effectively causing significant expansion as well as repairing concrete beams such as bridge girders which can indeed be useful in many transportation structures’ works.

First Page

13

Last Page

24

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