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On the Under-Pressure in the Pore Water of Sealed High Performance Concrete, HPC

Persson, Bertil LU (2000) In Concrete Science and Engineering 2. p.213-221
Abstract
This article outlines an experimental and numerical study on the estimation of under-pressure in the pore water of HPC. For this purpose 96 sealed cylinders made of 8 HPCs with w/c varying between 0.25 and 0.38, based on low-alkali Portland Cement, were manufactured. Five or ten per cent silica fume was used in the HPCs as calculated on the basis of the cement content. Basic creep was studied on two thirds of the cylinders and autogenous shrinkage on the rest. The measurement was done from 0.01 s until 3 years’ age. Parallel studies of hydration, strength and internal relative humidity, RH, were performed on 450 cubes manufactured from the same batches that were used for the cylinders. The results indicated high influence of w/c, age and... (More)
This article outlines an experimental and numerical study on the estimation of under-pressure in the pore water of HPC. For this purpose 96 sealed cylinders made of 8 HPCs with w/c varying between 0.25 and 0.38, based on low-alkali Portland Cement, were manufactured. Five or ten per cent silica fume was used in the HPCs as calculated on the basis of the cement content. Basic creep was studied on two thirds of the cylinders and autogenous shrinkage on the rest. The measurement was done from 0.01 s until 3 years’ age. Parallel studies of hydration, strength and internal relative humidity, RH, were performed on 450 cubes manufactured from the same batches that were used for the cylinders. The results indicated high influence of w/c, age and silica fume on the under-pressure in the pore water of HPC. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
silica fume, relative humidity, pore water, Concrete, high-performance concrete, under-pressure
in
Concrete Science and Engineering
volume
2
pages
213 - 221
publisher
RILEM
ISSN
1295-2826
language
English
LU publication?
yes
id
1b882bf8-0cfe-47fb-b151-1e1f9281e5f5 (old id 118610)
alternative location
http://www.rilem.org/gene/main.php?base=600026&id_publication=398&id_papier=7336
date added to LUP
2007-07-09 13:47:09
date last changed
2016-09-14 14:39:41
@article{1b882bf8-0cfe-47fb-b151-1e1f9281e5f5,
  abstract     = {This article outlines an experimental and numerical study on the estimation of under-pressure in the pore water of HPC. For this purpose 96 sealed cylinders made of 8 HPCs with w/c varying between 0.25 and 0.38, based on low-alkali Portland Cement, were manufactured. Five or ten per cent silica fume was used in the HPCs as calculated on the basis of the cement content. Basic creep was studied on two thirds of the cylinders and autogenous shrinkage on the rest. The measurement was done from 0.01 s until 3 years’ age. Parallel studies of hydration, strength and internal relative humidity, RH, were performed on 450 cubes manufactured from the same batches that were used for the cylinders. The results indicated high influence of w/c, age and silica fume on the under-pressure in the pore water of HPC.},
  author       = {Persson, Bertil},
  issn         = {1295-2826},
  keyword      = {silica fume,relative humidity,pore water,Concrete,high-performance concrete,under-pressure},
  language     = {eng},
  pages        = {213--221},
  publisher    = {RILEM},
  series       = {Concrete Science and Engineering},
  title        = {On the Under-Pressure in the Pore Water of Sealed High Performance Concrete, HPC},
  volume       = {2},
  year         = {2000},
}