The bleeding test: A simple method for obtaining the permeability and bulk modulus of fresh concrete

被引：39

作者：

Ghourchian, Sadegh ^{[1
,2
]}

Wyrzykowski, Mateusz ^{[1
]}

Lura, Pietro ^{[1
,2
]}

机构：

[1] Empa, Swiss Fed Labs Mat Sci & Technol, Dubendorf, Switzerland

[2] Swiss Fed Inst Technol, Inst Bldg Mat IfB, Zurich, Switzerland

来源：

CEMENT AND CONCRETE RESEARCH | 2016年 / 89卷

关键词：

Bleeding; Fresh concrete; Permeability; Shrinkage; Bulk modulus; CEMENT-BASED MATERIALS; ELECTRICAL-RESISTIVITY; PART I; MICROSTRUCTURE; SHRINKAGE; HYDRATION; PASTES;

D O I：

10.1016/j.cemconres.2016.08.016

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper shows how the well-known bleeding test can be used as a simple and inexpensive method for measuring the permeability and the bulk modulus of fresh concrete, utilizing Darcy's law and a small-strain poromechanical approach. The permeability and the bulk modulus are two essential parameters for understanding the behavior of fresh concrete, in particular plastic settlement and plastic shrinkage cracking. The proposec methods are verified and validated by utilizing experimental data obtained from the literature. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：249 / 256

页数：8