Evidence map›Paper›PMID 40004273›Full record

ArticleMaterials (Basel, Switzerland)2025

Influence of PEA on Volume Stability of Cement-Based Grouting Materials and Its Mechanism.

Zheng Che, Tian-Liang Wang, Zheng-Guo Zhou, Shuo Wang, Xin-Wei Ma

Abstract read
In one paragraph

Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Zheng CheChina Construction Sixth Engineering Bureau Hydropower Construction Co., Ltd., Tianjin 300222, China.ORCID 0000-0002-3813-670X
Tian-Liang WangChina Construction Sixth Engineering Bureau Hydropower Construction Co., Ltd., Tianjin 300222, China.
Zheng-Guo ZhouChina Construction Sixth Engineering Bureau Hydropower Construction Co., Ltd., Tianjin 300222, China.
Shuo WangSchool of Ocean Engineering, Harbin Institute of Technology, Weihai 264209, China.
Xin-Wei MaSchool of Ocean Engineering, Harbin Institute of Technology, Weihai 264209, China.ORCID 0000-0002-2565-9253

Funding

China Construction Sixth Engineering Department Co. Ltd. No. CSCEC6B-2022-Z-14China Construction Sixth Engineering Department Co. Ltd. No. CSCEC6B-2023-Z-11
6 · The paper itself

Abstract

Traditional expansive agents often fail to address early-stage cracking issues of grouting. A plastic expansive agent (PEA) can generate evenly distributed and closely packed microbubbles in the cement-basted grouting materials during the grout's setting process to cause volume expansion. However, its expansion mechanism is still unclear, and this restricts its practical application in engineering. Thus, the effects of PEA on the volume stability of grouting were evaluated in this research, and its mechanism was analyzed by setting time, pH, compressive strength, and bubble spacing coefficient. The results indicated that an increase in PEA content enhanced the volume expansion rate of the grout, while the bubble spacing coefficient gradually decreased and air contents increased. However, it was not advisable to blindly increase its contents. A higher content could lead to a less dense pore structure and a decrease in compressive strength. Therefore, the optimal content for PEA was approximately between 0.04% and 0.06%. Additionally, the expansion process of PEA was related to cement hydration. Therefore, by adjusting the mixture proportion, its expansion process could be designed to exhibit microexpansion properties.

Indexed as

bubble spacing coefficientcement-based grouting materialsplastic expansive agent (PEA)volume stability

Identifiers

PMID40004273
PMCPMC11857166

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.