JPS562529A - Manufacture of testing body for compression strength test of concrete - Google Patents

Manufacture of testing body for compression strength test of concrete

Info

Publication number
JPS562529A
JPS562529A JP7807379A JP7807379A JPS562529A JP S562529 A JPS562529 A JP S562529A JP 7807379 A JP7807379 A JP 7807379A JP 7807379 A JP7807379 A JP 7807379A JP S562529 A JPS562529 A JP S562529A
Authority
JP
Japan
Prior art keywords
laitance
concrete
layer part
retarded layer
cement setting
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.)
Granted
Application number
JP7807379A
Other languages
Japanese (ja)
Other versions
JPS6125302B2 (en
Inventor
Yasuaki Watanabe
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.)
KIYUUSHIYUU TOKUYAMA NAMAKONKU
KYUSHU TOKUYAMA NAMAKONKURIITO KK
Tokuyama Corp
Original Assignee
KIYUUSHIYUU TOKUYAMA NAMAKONKU
KYUSHU TOKUYAMA NAMAKONKURIITO KK
Tokuyama 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 KIYUUSHIYUU TOKUYAMA NAMAKONKU, KYUSHU TOKUYAMA NAMAKONKURIITO KK, Tokuyama Corp filed Critical KIYUUSHIYUU TOKUYAMA NAMAKONKU
Priority to JP7807379A priority Critical patent/JPS562529A/en
Publication of JPS562529A publication Critical patent/JPS562529A/en
Publication of JPS6125302B2 publication Critical patent/JPS6125302B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sampling And Sample Adjustment (AREA)

Abstract

PURPOSE: To make is easy to remove the laitance of a surface by applying the surface with a cement setting retardar after casting concret into a molding box, by removing the laitance and a retarded layer part a certain time later, and by performing capping processing.
CONSTITUTION: After concrete is cast into a molding box in the method of the Japanese Industrical Standard, a cement setting retardar is evenly applied on the surface of the concrete by spraying the surface with its solution. It should be applied enough to form a retarded layer of 2W3mm. After a certain time passes, the laitance of the surface and the retarded layer part are removed and then capping is put into effect to obtain a body to be tested. In this case, the retarded layer part is not developed sufficiently in strength under an influence of the cement setting retarder is formed and crumbly, so that the laitance can easily be removed by a with brush, chaplet hammer, or the like bordering on the retarded layer part.
COPYRIGHT: (C)1981,JPO&Japio
JP7807379A 1979-06-22 1979-06-22 Manufacture of testing body for compression strength test of concrete Granted JPS562529A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7807379A JPS562529A (en) 1979-06-22 1979-06-22 Manufacture of testing body for compression strength test of concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7807379A JPS562529A (en) 1979-06-22 1979-06-22 Manufacture of testing body for compression strength test of concrete

Publications (2)

Publication Number Publication Date
JPS562529A true JPS562529A (en) 1981-01-12
JPS6125302B2 JPS6125302B2 (en) 1986-06-14

Family

ID=13651661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7807379A Granted JPS562529A (en) 1979-06-22 1979-06-22 Manufacture of testing body for compression strength test of concrete

Country Status (1)

Country Link
JP (1) JPS562529A (en)

Also Published As

Publication number Publication date
JPS6125302B2 (en) 1986-06-14

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