METHOD AND APPARATUS FOR MEASURING WATER CONTENT OF AGGREGATE AT BATCHER PLANT

Title:

METHOD AND APPARATUS FOR MEASURING WATER CONTENT OF AGGREGATE AT BATCHER PLANT

Document Type and Number:

Japanese Patent JP2883289

Kind Code:

B

Abstract:

PURPOSE: To obtain method and apparatus for measuring the water content of aggregate at batcher plant in which the percentage of water content of aggregate is measured accurately by a real time processing system and concrete having stabilized unit water content can be supplied.
CONSTITUTION: At the outlet of an aggregate receiving bin 12, the percentage of water content of aggregate is measured when the aggregate is flowing down by means of a moisture content meter 13. A decisions is then made whether the measuring time of the percentage of water content is appropriate or not and the percentage of water content is equal to a set value or not. When the measuring time is appropriate and the percentage of water content is equal to a set value, current mixing ratio of aggregate, cement and water is sustained. When the measuring time is not appropriate, the opening of a cut gate 14 is regulated and when the percentage of water content is not equal to a set value, the quantity of water is regulated.

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Inventors:

Nagayama, Isao
Watanabe, Kazuo
Ogawa, Toshiharu
Kashimura, Kinya
Kumahara, Yoshibumi
Iida, Kazuhiko
Honma, Kiichi
Nishikawa, Masao
Nonome, Hiroshi
Shono, Akira
Ogawa, Akiji

Application Number:

JP1995000024787

Publication Date:

February 05, 1999

Filing Date:

January 18, 1995

Export Citation:

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Assignee:

PUB WORKS RES INST MINISTRY OF CONSTR
Sentan, Kensetsu Gijutsu Center
KONOIKE CONSTR LTD
SOIL & LOCK ENG KK
TAISEI CORP
DAIHO CONSTR CO LTD
TOA HARBOR WORKS CO LTD
TODA CONSTR CO LTD
HAZAMA GUMI LTD
MAEDA CORP

International Classes:

E04G21/02; B28C7/02; C04B14/02; G01N9/36; E04G21/02; B28C7/00; C04B14/02; G01N9/00; (IPC1-7): G01N9/36; B28C7/02

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