混凝土孔隙流體抽取儀孔隙流體分析可用于了解混凝土的耐久性問題，孔隙液體通過高壓擠壓獲取，耐久性與堿、氯化物粘合物有關(guān)，與鈣礬石形成的延遲有關(guān)

混凝土孔隙流體抽取儀

孔隙流體分析可用于了解混凝土的耐久性問題，孔隙液體通過高壓擠壓獲取，耐久性與堿、氯化物粘合物有關(guān)，與鈣礬石形成的延遲有關(guān)?？沙槿∮不_(dá)9個月以上的混凝土孔隙液體?！　?/span>

Concrete pore fluid extraction

混凝土孔隙流體抽取儀描述

Description

Concrete has an intricate pore structure comprising pores and voids. Pore fluid analysis has n* its usefulness for the understanding of concrete durability issues related to:

• alkali binding as it affects alkali–silica reaction (ASR)

• chloride-binding as it affects reinforcement corrosion resistance

• delayed ettringite formation (DEF)

The pore solution of concrete specimen can be extracted by high-pressure squeezing. In this way, CAD Instruments developed a special steel die to achieve extraction on concrete samples, named OpiCAD（混凝土孔隙流體抽取儀）.

混凝土孔隙流體抽取儀技術(shù)指標(biāo)：

Characteristics

• Up to 1 000 MPa

• Allows extraction of 9 months aged samples

• Easy extraction of the piston after use

* Advances in Cement Research, 22 (4), October 2010, pp. 203 –210