Title:
APPARATUS FOR PRODUCING RAPID-HARDENING CONCRETE BY INTERMIXING AND DISSIPATING AIR IN NORMAL CONCRETE AND ADDING EARLY-STRENGTH ADMIXTURE THERETO, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2015/088203
Kind Code:
A1
Abstract:
The present invention relates to an apparatus for producing rapid-hardening concrete and a method for producing same, the rapid-hardening concrete being produced by intermixing and dissipating air in normal concrete and adding an early-strength admixture thereto. With respect to forming rapid-hardening concrete, mixed concrete is formed by mixing in a large volume of air bubbles to be discarded, along with an early-strength admixture, to already mixed normal concrete, the early-strength admixture getting evenly dispersed therewithin by means of the ball bearing effect of the air bubbles, and when the mixed concrete is discharged, a rapid-hardening concrete is shotcreted while excess air contained in the mixed concrete is dissipated by means of high-pressure air, the slump which was raised due to the large amount of air bubbles having been reduced to the slump range for normal concrete.
Inventors:
YUN KYONG KU (KR)
Application Number:
PCT/KR2014/011981
Publication Date:
June 18, 2015
Filing Date:
December 08, 2014
Export Citation:
Assignee:
KANGWON NAT UNIVERSITY UNIVERSITY INDUSTRY COOPERATION FOUNDATION (KR)
International Classes:
B28B11/00; B28B13/04; C04B22/04
Foreign References:
| US3938786A | 1976-02-17 | |||
| KR20050087029A | 2005-08-31 | |||
| KR20000055032A | 2000-09-05 | |||
| KR101133569B1 | 2012-04-05 | |||
| JP2007297250A | 2007-11-15 | |||
| JP2007145652A | 2007-06-14 |
Attorney, Agent or Firm:
KIM, JONG IN (KR)
김종인 (KR)
김종인 (KR)
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