Experimental Study of the Basic Mechanical Properties of Hardened Gypsum Paste Modified with Addition of Polyoxy methylene Micrograins

The development of the construction industry and the growing ecological awareness of society encourages us search for new solutions to improve building materials. Therefore, an attempt was made to improve building gypsum by modifying it with the addition of polyoxymethylene (POM). Polymer grains, wi...

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Bibliographic Details
Published in:Archives of civil engineering 2020-06, Vol.66 (2), p.385-397
Main Authors: Prałat, K., Łukasiewicz, M., Miczko, P.
Format: Article
Language:English
Subjects:
Addition polymerization
Bend strength
bending strength
Building materials
Composite materials
Compressive strength
Construction industry
Construction materials
Grains
Gypsum
Mechanical properties
modified gypsum
Polymers
polyoxymethylene (pom)
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Summary:The development of the construction industry and the growing ecological awareness of society encourages us search for new solutions to improve building materials. Therefore, an attempt was made to improve building gypsum by modifying it with the addition of polyoxymethylene (POM). Polymer grains, with a particle size below and above 2 mm, were added to the samples in the amount of 1% and 2% relative to gypsum. The work contains the results of bending and compressive strength tests of prepared gypsum beams. It was shown that the compressive strength increased by 7% and the bending strength increased by 31% when compared to the reference test without the addition of polymer. All the obtained gypsum composites were characterized by a growth of strength. The best results were obtained for the sample containing gypsum composite modified with polymer in the amount of 1% and with a diameter of grains below 2 mm.
ISSN:1230-2945
2300-3103
DOI:10.24425/ace.2020.131816