Paper Title:
Assessment of Ultrasonic-Ethanol Extraction to Determine the pH Value of Hardened Cement Pastes
  Abstract

A simple method is presented to extract the pore solution of hardened cement pastes during the first 28 days and to measure the pH value, which is dependent on anhydrous-ethanol extraction (AEE) and improved by the assistance of ultrasonic vibration generator. The results were compared with the pore water expression (PWE) and anhydrous ethanol extraction through observing the variation tendency of pH values along with time and different water-cement ratios (w/c). The study showed that as w/c decreased, the pH value had a rising tendency; the density of [OH-] extracted by ultrasonic-ethanol extraction (UEE) method is 4-5 times higher than that by AEE method, which indicates the feasibility of UEE method.

  Info
Periodical
Edited by
Yiwang Bao, Danyu Jiang, Li Tian and Jianghong Gong
Pages
451-454
DOI
10.4028/www.scientific.net/KEM.492.451
Citation
X. M. Xing, W. Yao, "Assessment of Ultrasonic-Ethanol Extraction to Determine the pH Value of Hardened Cement Pastes", Key Engineering Materials, Vol. 492, pp. 451-454, 2012
Online since
September 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ya Qing Jiang, Qian Feng Xia
Abstract:Hydration characteristic and microstructures of water entrained cement paste with water-cement ratio (w/c) of 0.30 cured under saturated...
2249
Authors: Jun Zhao, Gao Chuang Cai, Dan Ying Gao
Abstract:The binding properties of chloride ion of sulphoaluminate cement and portland cement were studied in different age,different water-cement...
698
Authors: Li Guo Ma, Yun Sheng Zhang
Abstract:The hydration heat evolution process is studied on the pure cement paste, the cement- fly ash binary system and the cement- silica fume...
4001
Authors: Bao Lin Zhu, Xin Huang, Ye Guo
Abstract:On the basis of the principle for the highest filling degree of cement hydrates, it is synthetically considered that a matching connection...
118
Authors: Xu Yan Song, Jing Yun Han, Zhi Hai Gao
Chapter 2: Frontiers of Building Materials
Abstract:Through determining Ca(OH)2 content and chemically combined water content, hydration degree of cement with added-calcium thermal...
833