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Chemical emissions from concrete

Hjellström, Kristina LU (2004)
Abstract
The major part of this work deals with a new method for quantification of VOCs in concrete. There is a need for this type of quantification due to the development in cement and concrete production using plasticizing agents and fillers for improved rheological properties, and alternative fuels and waste materials to reduce the environmental impact of cement production. Measurements are needed to show that these actions do not influence the emissions from the products. Quantification by using multiple headspace extraction gas chromatography (MHE GC) is a fast and simple method. The samples are prepared of crushed concrete, put in sealed vials and repeated measurements are performed by incubation in temperatures above 100 degrees C for 45... (More)
The major part of this work deals with a new method for quantification of VOCs in concrete. There is a need for this type of quantification due to the development in cement and concrete production using plasticizing agents and fillers for improved rheological properties, and alternative fuels and waste materials to reduce the environmental impact of cement production. Measurements are needed to show that these actions do not influence the emissions from the products. Quantification by using multiple headspace extraction gas chromatography (MHE GC) is a fast and simple method. The samples are prepared of crushed concrete, put in sealed vials and repeated measurements are performed by incubation in temperatures above 100 degrees C for 45 minutes and headspace gas are extracted from the vial into the gas chromatograph for separation and detection of the VOCs. The method is calibrated by measuring known amounts of VOCs added to empty vials. This work is reported in the first paper and then continued in the second paper appended to the thesis. (Less)
Please use this url to cite or link to this publication:
author
supervisor
organization
publishing date
type
Thesis
publication status
published
subject
keywords
miljöpåverkan, mätmetoder, emissioner, flyktiga organiska föroreningar, betong, VOC, emissionsmätningar
pages
90 pages
publisher
Division of Building Materials, LTH, Lund University
external identifiers
  • other:TVBM-3114
language
English
LU publication?
yes
id
ee139ffa-c579-47e6-9b6f-98a4f86baf51 (old id 633757)
date added to LUP
2007-12-02 16:28:34
date last changed
2016-09-19 08:44:59
@misc{ee139ffa-c579-47e6-9b6f-98a4f86baf51,
  abstract     = {The major part of this work deals with a new method for quantification of VOCs in concrete. There is a need for this type of quantification due to the development in cement and concrete production using plasticizing agents and fillers for improved rheological properties, and alternative fuels and waste materials to reduce the environmental impact of cement production. Measurements are needed to show that these actions do not influence the emissions from the products. Quantification by using multiple headspace extraction gas chromatography (MHE GC) is a fast and simple method. The samples are prepared of crushed concrete, put in sealed vials and repeated measurements are performed by incubation in temperatures above 100 degrees C for 45 minutes and headspace gas are extracted from the vial into the gas chromatograph for separation and detection of the VOCs. The method is calibrated by measuring known amounts of VOCs added to empty vials. This work is reported in the first paper and then continued in the second paper appended to the thesis.},
  author       = {Hjellström, Kristina},
  keyword      = {miljöpåverkan,mätmetoder,emissioner,flyktiga organiska föroreningar,betong,VOC,emissionsmätningar},
  language     = {eng},
  note         = {Licentiate Thesis},
  pages        = {90},
  publisher    = {Division of Building Materials, LTH, Lund University},
  title        = {Chemical emissions from concrete},
  year         = {2004},
}