Organic phosphorus compounds as heat release regulators in hardening shielding concrete

Roman Jaskulski , Michał A. Glinicki , Zbigniew Ranachowski , Wojciech Kubissa

Abstract

The paper presents the results of the study of the influence of the addition of retarding superplasticising admixture based on triisobutyl phosphate and modified phosphonates on the amount of heat generated by hardening shielding concrete. A four-point measurement of the heat generated during the hardening of concrete with an admixture dose of 0, 0.5, 1.0 and 2.0% by weight of the cement was made and the concurrent measurement of the heat released by the hardening cement paste was measured with an isothermal calorimeter. Based on the results from the calorimeter, the effect of the admixture on the temperature field in the hardening concrete mass elements was simulated for different aggregates. The results indicate that the admixture clearly lowers the temperature gradient in hardening mass concrete. In the simulations, the most clear effect was achieved in the case of concrete with barite aggregate, where the gradient value was reduced from 10°C/m to 8°C/m for an admixture content equal to 2.0%.
Author Roman Jaskulski (FCEMP / ICEn)
Roman Jaskulski,,
- Insitute of Civil Engineering
, Michał A. Glinicki
Michał A. Glinicki,,
-
, Zbigniew Ranachowski
Zbigniew Ranachowski,,
-
, Wojciech Kubissa (FCEMP / ICEn)
Wojciech Kubissa,,
- Insitute of Civil Engineering
Journal seriesConstruction and Building Materials, ISSN 0950-0618, (N/A 140 pkt)
Issue year2019
Vol209
Pages167-175
Publication size in sheets0.5
Keywords in EnglishTemperature gradientHeat releaseShielding concreteMass concreteFresh concretePhosphorus compounds
ASJC Classification2500 General Materials Science; 2215 Building and Construction; 2205 Civil and Structural Engineering
DOIDOI:10.1016/j.conbuildmat.2019.03.081
Languageen angielski
Score (nominal)140
ScoreMinisterial score = 140.0, 23-09-2019, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 2.339; WoS Impact Factor: 2017 = 3.485 (2) - 2017=4.039 (5)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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