Influence of quartz particle size on the chemical and mechanical properties of autoclaved aerated concrete (I) tobermorite formation

Norifumi Isu; Hideki Ishida; Takeshi Mitsuda

doi:10.1016/0008-8846(95)00003-8

Influence of quartz particle size on the chemical and mechanical properties of autoclaved aerated concrete (I) tobermorite formation

Norifumi Isu, Hideki Ishida, Takeshi Mitsuda

Research output: Contribution to journal › Article › peer-review

79 Citations (Scopus)

Abstract

The chemical reactions in the hardening of autoclaved aerated concrete (AAC) block were investigated using ground quartz of different particle sizes. The samples were prepared at 180 °C under saturated steam pressure for various times from 0.5 to 64 h Autoclaving for 0.5 h yielded 1.1-nm tobermorite, suggesting that the utilization of finer quartz has the advantage of reducing the processing time. The tobermorite formed had higher crystallinity with coarser quartz. The degree of reaction of finer quartz was higher than that of coarser quartz after shorter periods of autoclaving, but lower after longer periods of autoclaving. Gyrolite was formed after 64h when finer quartz was used.

Original language	English
Pages (from-to)	243-248
Number of pages	6
Journal	Cement and Concrete Research
Volume	25
Issue number	2
DOIs	https://doi.org/10.1016/0008-8846(95)00003-8
Publication status	Published - 1995 Feb
Externally published	Yes

ASJC Scopus subject areas

Building and Construction
Materials Science(all)

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10.1016/0008-8846(95)00003-8

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title = "Influence of quartz particle size on the chemical and mechanical properties of autoclaved aerated concrete (I) tobermorite formation",

abstract = "The chemical reactions in the hardening of autoclaved aerated concrete (AAC) block were investigated using ground quartz of different particle sizes. The samples were prepared at 180 °C under saturated steam pressure for various times from 0.5 to 64 h Autoclaving for 0.5 h yielded 1.1-nm tobermorite, suggesting that the utilization of finer quartz has the advantage of reducing the processing time. The tobermorite formed had higher crystallinity with coarser quartz. The degree of reaction of finer quartz was higher than that of coarser quartz after shorter periods of autoclaving, but lower after longer periods of autoclaving. Gyrolite was formed after 64h when finer quartz was used.",

author = "Norifumi Isu and Hideki Ishida and Takeshi Mitsuda",

note = "Funding Information: We thank the Cement Association of Japan for a research fellowship to N. Isu and T. Mitsuda, and H. Matsuo, Nagoya Institute of Technology, for help with the experiments.",

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AU - Isu, Norifumi

AU - Ishida, Hideki

AU - Mitsuda, Takeshi

N1 - Funding Information: We thank the Cement Association of Japan for a research fellowship to N. Isu and T. Mitsuda, and H. Matsuo, Nagoya Institute of Technology, for help with the experiments.

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N2 - The chemical reactions in the hardening of autoclaved aerated concrete (AAC) block were investigated using ground quartz of different particle sizes. The samples were prepared at 180 °C under saturated steam pressure for various times from 0.5 to 64 h Autoclaving for 0.5 h yielded 1.1-nm tobermorite, suggesting that the utilization of finer quartz has the advantage of reducing the processing time. The tobermorite formed had higher crystallinity with coarser quartz. The degree of reaction of finer quartz was higher than that of coarser quartz after shorter periods of autoclaving, but lower after longer periods of autoclaving. Gyrolite was formed after 64h when finer quartz was used.

AB - The chemical reactions in the hardening of autoclaved aerated concrete (AAC) block were investigated using ground quartz of different particle sizes. The samples were prepared at 180 °C under saturated steam pressure for various times from 0.5 to 64 h Autoclaving for 0.5 h yielded 1.1-nm tobermorite, suggesting that the utilization of finer quartz has the advantage of reducing the processing time. The tobermorite formed had higher crystallinity with coarser quartz. The degree of reaction of finer quartz was higher than that of coarser quartz after shorter periods of autoclaving, but lower after longer periods of autoclaving. Gyrolite was formed after 64h when finer quartz was used.

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Influence of quartz particle size on the chemical and mechanical properties of autoclaved aerated concrete (I) tobermorite formation

Abstract

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