Effects of Different Content of Phosphorus Slag Composite Concrete: Heat Evolution, Sulphate-Corrosion Resistance and Volume Deformation

Phosphorus slag (PS) and limestone (LS) composite (PLC) were prepared with a mass ratio of 1:1. The effects of the content of PLC and the water/binder ratio on the mechanical properties, durability and dry shrinkage of concrete were studied via compressive strength, electric flux, sulfate dry/wet cy...

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Autores principales:	Kuisheng Liu, Yong Cui
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	phosphorus slag limestone concrete sulphate-corrosion resistance volume deformation Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/8a94751e5e7c4a09a88e0ce27ab451b5
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id	oai:doaj.org-article:8a94751e5e7c4a09a88e0ce27ab451b5
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spelling	oai:doaj.org-article:8a94751e5e7c4a09a88e0ce27ab451b52021-11-25T17:17:46ZEffects of Different Content of Phosphorus Slag Composite Concrete: Heat Evolution, Sulphate-Corrosion Resistance and Volume Deformation10.3390/cryst111112932073-4352https://doaj.org/article/8a94751e5e7c4a09a88e0ce27ab451b52021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1293https://doaj.org/toc/2073-4352Phosphorus slag (PS) and limestone (LS) composite (PLC) were prepared with a mass ratio of 1:1. The effects of the content of PLC and the water/binder ratio on the mechanical properties, durability and dry shrinkage of concrete were studied via compressive strength, electric flux, sulfate dry/wet cycle method, saturated drainage method, isothermal calorimeter, adiabatic temperature rise instrument and shrinkage deformation instrument. The results show that PLC can greatly reduce the adiabatic temperature rise of concrete. The adiabatic temperature rise is 55 °C with 33 wt.% PLC, 10 °C lower than that of the control sample. The addition in the content of PLC does not affect the long-term strength of concrete. When the water/binder ratio decreases by 0.1–0.15, the long-term strength of concrete with PLC increases by about 10%, compared with the control group. At the age of 360 days, the chloride permeability of L-11 (i.e., the content of PLC was 20%, the water/binder ratio was 0.418) and L-22 (i.e., the content of PLC was 33%, the water/binder ratio was 0.39) decrease to the “very low” grade. The strength loss rate of L-11 and L-22 after 150 sulfate dry/wet cycles is about 18.5% and 19%, respectively, which is 60% of the strength loss rate of the control sample. The drying shrinkage of L-11 and L-22 reduces by 4.7% and 9.5%, respectively, indicating that PLC can also reduce the drying shrinkage.Kuisheng LiuYong CuiMDPI AGarticlephosphorus slaglimestoneconcretesulphate-corrosion resistancevolume deformationCrystallographyQD901-999ENCrystals, Vol 11, Iss 1293, p 1293 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	phosphorus slag limestone concrete sulphate-corrosion resistance volume deformation Crystallography QD901-999
spellingShingle	phosphorus slag limestone concrete sulphate-corrosion resistance volume deformation Crystallography QD901-999 Kuisheng Liu Yong Cui Effects of Different Content of Phosphorus Slag Composite Concrete: Heat Evolution, Sulphate-Corrosion Resistance and Volume Deformation
description	Phosphorus slag (PS) and limestone (LS) composite (PLC) were prepared with a mass ratio of 1:1. The effects of the content of PLC and the water/binder ratio on the mechanical properties, durability and dry shrinkage of concrete were studied via compressive strength, electric flux, sulfate dry/wet cycle method, saturated drainage method, isothermal calorimeter, adiabatic temperature rise instrument and shrinkage deformation instrument. The results show that PLC can greatly reduce the adiabatic temperature rise of concrete. The adiabatic temperature rise is 55 °C with 33 wt.% PLC, 10 °C lower than that of the control sample. The addition in the content of PLC does not affect the long-term strength of concrete. When the water/binder ratio decreases by 0.1–0.15, the long-term strength of concrete with PLC increases by about 10%, compared with the control group. At the age of 360 days, the chloride permeability of L-11 (i.e., the content of PLC was 20%, the water/binder ratio was 0.418) and L-22 (i.e., the content of PLC was 33%, the water/binder ratio was 0.39) decrease to the “very low” grade. The strength loss rate of L-11 and L-22 after 150 sulfate dry/wet cycles is about 18.5% and 19%, respectively, which is 60% of the strength loss rate of the control sample. The drying shrinkage of L-11 and L-22 reduces by 4.7% and 9.5%, respectively, indicating that PLC can also reduce the drying shrinkage.
format	article
author	Kuisheng Liu Yong Cui
author_facet	Kuisheng Liu Yong Cui
author_sort	Kuisheng Liu
title	Effects of Different Content of Phosphorus Slag Composite Concrete: Heat Evolution, Sulphate-Corrosion Resistance and Volume Deformation
title_short	Effects of Different Content of Phosphorus Slag Composite Concrete: Heat Evolution, Sulphate-Corrosion Resistance and Volume Deformation
title_full	Effects of Different Content of Phosphorus Slag Composite Concrete: Heat Evolution, Sulphate-Corrosion Resistance and Volume Deformation
title_fullStr	Effects of Different Content of Phosphorus Slag Composite Concrete: Heat Evolution, Sulphate-Corrosion Resistance and Volume Deformation
title_full_unstemmed	Effects of Different Content of Phosphorus Slag Composite Concrete: Heat Evolution, Sulphate-Corrosion Resistance and Volume Deformation
title_sort	effects of different content of phosphorus slag composite concrete: heat evolution, sulphate-corrosion resistance and volume deformation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8a94751e5e7c4a09a88e0ce27ab451b5
work_keys_str_mv	AT kuishengliu effectsofdifferentcontentofphosphorusslagcompositeconcreteheatevolutionsulphatecorrosionresistanceandvolumedeformation AT yongcui effectsofdifferentcontentofphosphorusslagcompositeconcreteheatevolutionsulphatecorrosionresistanceandvolumedeformation
_version_	1718412543278448640

Effects of Different Content of Phosphorus Slag Composite Concrete: Heat Evolution, Sulphate-Corrosion Resistance and Volume Deformation

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