Preparation, Properties and Microstructure of Non-Calcination Rock Powder Brick with Orthogonal Experiments

In this paper, the preparation method and reasonable mix ratio of non-calcination brick with rock powder, cement, lime and fly ash ceramsite (FAC) as the raw materials were experimentally evaluated. To better understand the effects of each component on the performance of non-calcination rock powder...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jie Fan, Zhongkun Wang, Gengying Li
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	non-calcination rock powder brick orthogonal experimental design compressive strength water resistance microstructure Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/805fdafc83d5496d837de78fd9afc33b
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:805fdafc83d5496d837de78fd9afc33b
record_format	dspace
spelling	oai:doaj.org-article:805fdafc83d5496d837de78fd9afc33b2021-11-11T15:18:47ZPreparation, Properties and Microstructure of Non-Calcination Rock Powder Brick with Orthogonal Experiments10.3390/app1121102742076-3417https://doaj.org/article/805fdafc83d5496d837de78fd9afc33b2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10274https://doaj.org/toc/2076-3417In this paper, the preparation method and reasonable mix ratio of non-calcination brick with rock powder, cement, lime and fly ash ceramsite (FAC) as the raw materials were experimentally evaluated. To better understand the effects of each component on the performance of non-calcination rock powder brick (NCRPB), an orthogonal experimental design was conducted with the water–cement ratio (W/C), rock powder–cement ratio (R/C), lime content (w<sub>l</sub>) and FAC content (w<sub>f</sub>) as the main factors, which involved four factors and three factor levels. According to the orthogonal experimental design, the compressive strength, water resistance and bulk density of nine groups of NCRPB specimens were tested. The results show that R/C was the most important factor affecting the compressive strength and water resistance, while the FAC content influenced the bulk density of NCRPB greatly. In this study, the reasonable mix of W/C, R/C, w<sub>l</sub>, and w<sub>f</sub> in weight was 0.6, 3.0, 30% and 21%, respectively. In addition, the microstructure and strength formation mechanism of NCRPB were analyzed by using SEM and XRD. The test results show that the rock powder having pozzolanic activity could react with the additional Ca(OH)<sub>2</sub> to produce hydration products, leading to the improvement of the performance of NCRPB.Jie FanZhongkun WangGengying LiMDPI AGarticlenon-calcination rock powder brickorthogonal experimental designcompressive strengthwater resistancemicrostructureTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10274, p 10274 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	non-calcination rock powder brick orthogonal experimental design compressive strength water resistance microstructure Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	non-calcination rock powder brick orthogonal experimental design compressive strength water resistance microstructure Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Jie Fan Zhongkun Wang Gengying Li Preparation, Properties and Microstructure of Non-Calcination Rock Powder Brick with Orthogonal Experiments
description	In this paper, the preparation method and reasonable mix ratio of non-calcination brick with rock powder, cement, lime and fly ash ceramsite (FAC) as the raw materials were experimentally evaluated. To better understand the effects of each component on the performance of non-calcination rock powder brick (NCRPB), an orthogonal experimental design was conducted with the water–cement ratio (W/C), rock powder–cement ratio (R/C), lime content (w<sub>l</sub>) and FAC content (w<sub>f</sub>) as the main factors, which involved four factors and three factor levels. According to the orthogonal experimental design, the compressive strength, water resistance and bulk density of nine groups of NCRPB specimens were tested. The results show that R/C was the most important factor affecting the compressive strength and water resistance, while the FAC content influenced the bulk density of NCRPB greatly. In this study, the reasonable mix of W/C, R/C, w<sub>l</sub>, and w<sub>f</sub> in weight was 0.6, 3.0, 30% and 21%, respectively. In addition, the microstructure and strength formation mechanism of NCRPB were analyzed by using SEM and XRD. The test results show that the rock powder having pozzolanic activity could react with the additional Ca(OH)<sub>2</sub> to produce hydration products, leading to the improvement of the performance of NCRPB.
format	article
author	Jie Fan Zhongkun Wang Gengying Li
author_facet	Jie Fan Zhongkun Wang Gengying Li
author_sort	Jie Fan
title	Preparation, Properties and Microstructure of Non-Calcination Rock Powder Brick with Orthogonal Experiments
title_short	Preparation, Properties and Microstructure of Non-Calcination Rock Powder Brick with Orthogonal Experiments
title_full	Preparation, Properties and Microstructure of Non-Calcination Rock Powder Brick with Orthogonal Experiments
title_fullStr	Preparation, Properties and Microstructure of Non-Calcination Rock Powder Brick with Orthogonal Experiments
title_full_unstemmed	Preparation, Properties and Microstructure of Non-Calcination Rock Powder Brick with Orthogonal Experiments
title_sort	preparation, properties and microstructure of non-calcination rock powder brick with orthogonal experiments
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/805fdafc83d5496d837de78fd9afc33b
work_keys_str_mv	AT jiefan preparationpropertiesandmicrostructureofnoncalcinationrockpowderbrickwithorthogonalexperiments AT zhongkunwang preparationpropertiesandmicrostructureofnoncalcinationrockpowderbrickwithorthogonalexperiments AT gengyingli preparationpropertiesandmicrostructureofnoncalcinationrockpowderbrickwithorthogonalexperiments
_version_	1718435374345224192

Preparation, Properties and Microstructure of Non-Calcination Rock Powder Brick with Orthogonal Experiments

Ejemplares similares