Measurement of autogenous and drying shrinkage in paste, mortar, and concrete with the plastic-sleeve test method

IF 3.9 3区工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY

Materials and Structures Pub Date : 2025-09-01 DOI:10.1617/s11527-025-02752-4

A. Zieliński, A. K. Schindler

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引用次数: 0

Abstract

Autogenous and drying shrinkage are the two components of total shrinkage of cementitious materials. So far, no effective method has been developed that can measure autogenous and drying shrinkage of paste, mortar, and concrete samples. The Plastic-Sleeve Test (PST) method is introduced in this paper and consists of molding a specimen in a plastic sleeve, which enables the measurement of autogenous shrinkage strains. After removal of the plastic sleeve, drying shrinkage can also be measured. The PST method can be used for paste, mortar, and concrete of various consistencies. The proposed method allows the measurement of early-age strains immediately following final setting, which is important to accurately measure autogenous shrinkage. Since the PST method measures both autogenous and drying shrinkage strains, it automatically captures total shrinkage and solves the problem where the early part of autogenous shrinkage is not captured when traditional drying shrinkage tests are used and no autogenous shrinkage testing is performed.

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用塑料套试验法测定膏体、砂浆和混凝土的自收缩和干收缩

自收缩和干燥收缩是胶凝材料总收缩的两个组成部分。到目前为止，还没有开发出有效的方法来测量膏体、砂浆和混凝土样品的自收缩和干燥收缩。本文介绍了塑料套筒试验（PST）方法，该方法是在塑料套筒中成型试样，从而可以测量自收缩应变。取下塑料套筒后，还可测量干燥收缩率。PST法可用于各种浓度的膏体、砂浆和混凝土。所提出的方法允许在最终设置后立即测量早期应变，这对于准确测量自收缩非常重要。由于PST方法既测量自收缩应变，也测量干燥收缩应变，因此可以自动捕获总收缩，解决了传统干燥收缩试验和不进行自收缩试验时无法捕获自收缩早期部分的问题。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials and Structures 工程技术-材料科学：综合

CiteScore

6.40

自引率

7.90%

发文量

222

审稿时长

5.9 months

期刊介绍： Materials and Structures, the flagship publication of the International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM), provides a unique international and interdisciplinary forum for new research findings on the performance of construction materials. A leader in cutting-edge research, the journal is dedicated to the publication of high quality papers examining the fundamental properties of building materials, their characterization and processing techniques, modeling, standardization of test methods, and the application of research results in building and civil engineering. Materials and Structures also publishes comprehensive reports prepared by the RILEM’s technical committees.