Preceding material for pumping

a technology of pre-mixed materials and pre-mixed concrete, which is applied in the direction of climate sustainability, solid waste management, sustainable waste treatment, etc., can solve the problems of clogging, inevitable and complicated mixing of water and cement, and the delivery end of the pumping, so as to achieve effective separation from the pumped ready-mixed concrete, prolong the pumping distance, and utilize waste effectively
US20200339474A1Pending Publication Date: 2020-10-29TAKE CITE CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
TAKE CITE CO LTD
Publication Date
2020-10-29

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Abstract

The purpose of the present invention is to provide a preceding material for pumping, a feeding of a very small amount thereof being capable of extending the pumping distance. The preceding material for pumping includes an added cellulose nanofiber and having calcium carbonate as a main component. The present invention enables a thin lubricant layer of a uniform thickness to be formed inside a pipe even when the pipe has a slightly roughened inner surface due to, for example, residues of solidified cement paste or the like, allowing the pumping distance to be extended. Thus, the present invention is suitable, for example, for casting ready-mixed concrete at various construction sites.
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Description

TECHNICAL FIELD

[0001] The present invention relates to a preceding material for pumping, which is used during pumping and casting of ready-mixed concrete by using, for example, a ready-mixed concrete pumping vehicle. More particularly, the present invention relates to the preceding material for pumping, in which the pumping distance can be extended by using cellulose nanofiber (CNF).BACKGROUND ART

[0002] Ready-mixed concrete pumping vehicles are used at various construction sites, as a means for pumping and casting of ready-mixed concrete into a predetermined place. The ready-mixed concrete pumping vehicle is provided with a hopper, a pump and a boom, and a piping is connected to an outlet of the pump. The piping is laid along the boom, and elongating toward a predetermined place into which the ready-mixed concrete is pumped. A ready-mixed concrete mixer vehicle feeds the ready-mixed concrete into the hopper, and the ready-mixed concrete is pumped to and casted in the predetermined pla...

Claims

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