Effect of different pre-curing conditions on the performance of low-temperature early strength polycarboxylate superplasticizers

DOI

10.2991/978-94-6463-336-8_66How to use a DOI?

Keywords

low-temperature early strength polycarboxylate superplasticizers; mortar; early strength performance; pre-curing time; pre-curing temperature

Abstract

This study involved the optimization of the process for low-temperature early strength polycarboxylate superplasticizers (PCE), and determined the optimal DW07 process with excellent low-temperature early strength performance: n(AA)/n(EPEG) = 9.45, n(TGA)/n(EPEG) = 0.23, n(U1)/n(EPEG) = 0.72, n(M1)/n(EPEG) = 0.36. Additionally, the influence of different pre-curing conditions on the early strength performance of the PCE at low temperatures was investigated. Furthermore, concrete tests were conducted to further validate the strengthening effect of DW07 at low temperatures. The experiments demonstrated that selecting a pre-curing time of 3 h and a pre-curing temperature of 15 ℃ as the optimal pre-curing conditions, the addition of DW07 low-temperature early strength PCE significantly enhanced the 1 d, 3 d, and 28 d strength performance of mortar.

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  - Shaohong Zhu
PY  - 2023
DA  - 2023/12/30
TI  - Effect of different pre-curing conditions on the performance of low-temperature early strength polycarboxylate superplasticizers
BT  - Proceedings of the 2023 9th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2023)
PB  - Atlantis Press
SP  - 567
EP  - 575
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-336-8_66
DO  - 10.2991/978-94-6463-336-8_66
ID  - Zhu2023
ER  -