Efficient slump retaining agent and preparation method thereof

A slump-retaining agent and high-efficiency technology, applied in the field of building materials, can solve the problems of high mud content and stone powder content in sand and gravel, slow down the construction progress, and greatly fluctuate in cement quality, and achieve the goal of improving workability and reducing energy consumption. Effect
CN111440273APending Publication Date: 2020-07-24CHONGQING SANSHENG IND CO LTD
4 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING SANSHENG IND CO LTD
Publication Date
2020-07-24

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses an efficient slump retaining agent, which is prepared from the following components in parts by weight: 250-600 parts of a monomer A, 11-40 parts of a monomer B, 20-60 parts ofa monomer C, 5-15 parts of a monomer D, 1-20 parts of an initiator, 0.8-10 parts of a composite molecular weight regulator, 0.5-4 parts of vitamin C sodium and 300-700 parts of water, wherein the monomer A is any one or a mixture of more of isopentenyl polyethylene glycol ether, hydroxybutyl vinyl polyethylene glycol ether and ethoxy vinyl polyethylene glycol ether, the monomer B is any one or amixture of two of acrylic acid, fumaric acid, itaconic acid and maleic anhydride, the monomer C is any one or a mixture of more of hydroxyethyl acrylate, hydroxypropyl acrylate, methacryloyloxy phosphate and hydroxyethyl methacrylate, the monomer D is diacrylamide dimethyl propanesulfonic acid or acrylamide, and the composite molecular weight regulator is mercaptoethanol. The components are subjected to a stirring reaction to obtain the product. The efficient slump retaining agent provided by the invention is good in slump retaining performance, small in performance fluctuation and excellent in adaptability, and can effectively meet the slump retaining requirements of concrete in various regions.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of building materials, in particular to a high-efficiency slump-retaining agent and a preparation method thereof. Background technique

[0002] Polycarboxylate superplasticizer is the third-generation superplasticizer after lignin and naphthalene series superplasticizers. It has low dosage, high water reducing rate, good fluidity and slump retention of fresh concrete, low shrinkage, It has the characteristics of excellent durability and strong molecular design. At the same time, it does not use formaldehyde in the production process, and has no waste liquid and gas discharge, etc., which has environmental protection performance. The invention of polycarboxylate superplasticizer has greatly improved the performance of concrete and promoted the continuous development of concrete technology. Therefore, polycarboxylate superplasticizers have been widely used in municipalities, railways, highways, ports, bridges, hydropow...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More