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A NORDTEST Method for Verification of Self-desiccation in Concrete

Persson, Bertil LU (2001) In Cement and Concrete Research 31(2). p.199-203
Abstract
This article outlines a new NORDTEST method for verification of self-desiccation in concrete. The method involves measurements of the internal relative humidity, RH, on pieces of concrete at one month’s age. The measured RH is then compared with the requirements according to the owner. The new NORDTEST method for self-desiccation permits requirements to be made of the self-desiccation of HPC in accordance with present demands on strength. During the development of the test method experimental studies were carried out on nine concretes with w/c varying between 0.32 and 0.50. Half of the concretes contained five per cent silica fume. The experiments showed a significant effect of cement type, silica fume and w/c on the self-desiccation in... (More)
This article outlines a new NORDTEST method for verification of self-desiccation in concrete. The method involves measurements of the internal relative humidity, RH, on pieces of concrete at one month’s age. The measured RH is then compared with the requirements according to the owner. The new NORDTEST method for self-desiccation permits requirements to be made of the self-desiccation of HPC in accordance with present demands on strength. During the development of the test method experimental studies were carried out on nine concretes with w/c varying between 0.32 and 0.50. Half of the concretes contained five per cent silica fume. The experiments showed a significant effect of cement type, silica fume and w/c on the self-desiccation in concrete. The test method was also verified in the field, both when manufacturing the concrete and on site. The method was developed after co-operation between the Technical University of Denmark and Lund University. The experimental studies were performed at Division of Building Materials, Lund Institute of Technology, Lund, 1995-1999. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Silica Fume, Pozzolan, Humidity, Concrete, Alkalis, Cement
in
Cement and Concrete Research
volume
31
issue
2
pages
199 - 203
publisher
Elsevier
external identifiers
  • scopus:33645716945
ISSN
0008-8846
DOI
10.1016/S0008-8846(00)00364-1
language
English
LU publication?
yes
id
e6cb2ce2-f182-41d9-987a-44ba965f4268 (old id 118114)
date added to LUP
2007-07-09 14:41:40
date last changed
2018-05-29 11:40:20
@article{e6cb2ce2-f182-41d9-987a-44ba965f4268,
  abstract     = {This article outlines a new NORDTEST method for verification of self-desiccation in concrete. The method involves measurements of the internal relative humidity, RH, on pieces of concrete at one month’s age. The measured RH is then compared with the requirements according to the owner. The new NORDTEST method for self-desiccation permits requirements to be made of the self-desiccation of HPC in accordance with present demands on strength. During the development of the test method experimental studies were carried out on nine concretes with w/c varying between 0.32 and 0.50. Half of the concretes contained five per cent silica fume. The experiments showed a significant effect of cement type, silica fume and w/c on the self-desiccation in concrete. The test method was also verified in the field, both when manufacturing the concrete and on site. The method was developed after co-operation between the Technical University of Denmark and Lund University. The experimental studies were performed at Division of Building Materials, Lund Institute of Technology, Lund, 1995-1999.},
  author       = {Persson, Bertil},
  issn         = {0008-8846},
  keyword      = {Silica Fume,Pozzolan,Humidity,Concrete,Alkalis,Cement},
  language     = {eng},
  number       = {2},
  pages        = {199--203},
  publisher    = {Elsevier},
  series       = {Cement and Concrete Research},
  title        = {A NORDTEST Method for Verification of Self-desiccation in Concrete},
  url          = {http://dx.doi.org/10.1016/S0008-8846(00)00364-1},
  volume       = {31},
  year         = {2001},
}