EFFECT OF POLYCARBOXYLATE SUPERPLASTICIZERS ON THE PROPERTIES OF READY-MIX CONCRETE-Reference-Cited by-同舟云学术

EFFECT OF POLYCARBOXYLATE SUPERPLASTICIZERS ON THE PROPERTIES OF READY-MIX CONCRETE

Published:2022-06-20 Issue:1 Volume:2022 Page:43-48
ISSN:2707-1057
Container-title:Theory and Building Practice
language:
Short-container-title:Theory build. pract.

Author:

Rykhlitska Oksana^ORCID, ,Kropyvnytska Тetiana^ORCID,

Abstract

The article analyzes the experience of using Portland limestone cement for the production of ready-mixed concretes. It is shown that polycarboxylate superplasticizers (PCE) play a decisive role in providing required technological and construction-technical properties of concrete. The data show that the most effective PCEs for maintaining the workability of the concrete mixture over time and obtaining the required strength class of concrete are РСЕ based on modified acrylic polymers. It was found that polycarboxylate superplasticizers provide a significant water-reducing effect (ΔW/C = 38%) and was achieved compressive strength class C45/55. It is shown that such concretes are characterized by its rapid strength development (fcm2/fcm28=0.54). The ready-mix concrete with PCE was used for concreting foundations of wind turbines on the wind power plant with provide the technological properties and of reduce CO2 emissions.

Publisher

Lviv Polytechnic National University

Subject

Industrial and Manufacturing Engineering,Environmental Engineering

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