JPS6433083A - Extra-light-weight concrete - Google Patents

Extra-light-weight concrete

Info

Publication number
JPS6433083A
JPS6433083A JP19103387A JP19103387A JPS6433083A JP S6433083 A JPS6433083 A JP S6433083A JP 19103387 A JP19103387 A JP 19103387A JP 19103387 A JP19103387 A JP 19103387A JP S6433083 A JPS6433083 A JP S6433083A
Authority
JP
Japan
Prior art keywords
extra
light
cement
weight
silica fume
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP19103387A
Other languages
Japanese (ja)
Inventor
Masatake Kuku
Akio Shinozaki
Takashi Ikemi
Kenichi Naito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimizu Construction Co Ltd
Shimizu Corp
Original Assignee
Shimizu Construction Co Ltd
Shimizu Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shimizu Construction Co Ltd, Shimizu Corp filed Critical Shimizu Construction Co Ltd
Priority to JP19103387A priority Critical patent/JPS6433083A/en
Publication of JPS6433083A publication Critical patent/JPS6433083A/en
Pending legal-status Critical Current

Links

Landscapes

  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Abstract

PURPOSE:To produce an extra-light-weight concrete of superior mechanical strength by mixing a prescribed amount of silica fume with a mixture of extra- light-weight aggregates obtained by granulating porous biotite rhyotite fine- powders, water and cement. CONSTITUTION:The extra-light-weight concrete is produced by mixing 1-30wt.%, preferably 10-15wt.% silica fume with the mixture of extra-light- weight aggregates obtained by granulating and calcining porous biotite rhyotite fine-powders, water and cement. A grain size of the above-mentioned extra-light- weight aggregates are in the range of 0.6-5mm, and an amount of the aggregates mixed in the above-mentioned concrete is usually 60-80wt.%. A water-cement ratio (W/C) is usually about 35-55%. The extra-light-weight concrete produced by said invention is of high hydration activity, and extra-fine powders of the silica fume mixed in the cement are rapidly dissolved into a solution containing calcium hydroxide separated by a hydration of the cement. Then, a siliceous gel layer is deposited on the particle surface of said silica fume, and a very fine structure of Ca-silicates is formed thereby.
JP19103387A 1987-07-30 1987-07-30 Extra-light-weight concrete Pending JPS6433083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19103387A JPS6433083A (en) 1987-07-30 1987-07-30 Extra-light-weight concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19103387A JPS6433083A (en) 1987-07-30 1987-07-30 Extra-light-weight concrete

Publications (1)

Publication Number Publication Date
JPS6433083A true JPS6433083A (en) 1989-02-02

Family

ID=16267778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19103387A Pending JPS6433083A (en) 1987-07-30 1987-07-30 Extra-light-weight concrete

Country Status (1)

Country Link
JP (1) JPS6433083A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02221172A (en) * 1989-02-21 1990-09-04 Nippon Cement Co Ltd Production of lightweight inorganic hardened body
JP2006337099A (en) * 2005-05-31 2006-12-14 Advantest Corp Testing arrangement
CN110171950A (en) * 2019-06-05 2019-08-27 滁州市炬基节能新型建材有限公司 A kind of wet-mixing composite light-weight base aggregate concrete and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58140365A (en) * 1982-02-17 1983-08-20 新島物産株式会社 Manufacture of super lightweght aggregate
JPS6241784A (en) * 1985-08-14 1987-02-23 清水建設株式会社 Concrete containing pumice foamed grain

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58140365A (en) * 1982-02-17 1983-08-20 新島物産株式会社 Manufacture of super lightweght aggregate
JPS6241784A (en) * 1985-08-14 1987-02-23 清水建設株式会社 Concrete containing pumice foamed grain

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02221172A (en) * 1989-02-21 1990-09-04 Nippon Cement Co Ltd Production of lightweight inorganic hardened body
JP2006337099A (en) * 2005-05-31 2006-12-14 Advantest Corp Testing arrangement
CN110171950A (en) * 2019-06-05 2019-08-27 滁州市炬基节能新型建材有限公司 A kind of wet-mixing composite light-weight base aggregate concrete and preparation method thereof

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