Retarder for magnesium phosphate cement and use method thereof

A technology of magnesium phosphate cement and retarder, which is applied in the field of retarder for magnesium phosphate cement, which can solve problems such as corrosion of steel bars and influence on the performance of concrete structures, achieve stable effects, increase the difficulty of construction management, and delay the hydration process.
CN113443849AActive Publication Date: 2021-09-28XIYUEFA INT ENVIRONMENTAL PROTECTION NEW MATERIALS CO LTD
16 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
XIYUEFA INT ENVIRONMENTAL PROTECTION NEW MATERIALS CO LTD
Publication Date
2021-09-28

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The invention discloses a retarder for magnesium phosphate cement and a use method of the retarder. The retarder for the magnesium phosphate cement is prepared from the following materials in parts by weight: 23 to 48 parts of borax, 27 to 38 parts of magnesium sulfate heptahydrate and 1 to 6 parts of sodium acetate trihydrate. According to the invention, multiple retarding technologies are combined for use, a retarding effect is obvious, and the retarding effect is easy to adjust and controllable; the retarder is simple and practical, additional facility or measure cost is not increased, and construction management difficulty is not increased; safety and reliability are achieved, ions (such as chloride ions) harmful to a concrete matrix are not introduced, and structural strength and durability are not affected; and the retarder is high in applicability, can be introduced into magnesium phosphate cement paste, magnesium phosphate mortar and magnesium phosphate concrete for use, and is stable in effect.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a retarder for magnesium phosphate cement and a using method thereof, belonging to the technical field of magnesium phosphate cement admixtures. Background technique

[0002] Due to various reasons such as raw materials, mix design, structural design, environmental erosion, construction defects, and poor maintenance, concrete structures often deteriorate during service, and fail to reach the expected life. Any concrete structure needs continuous protection, maintenance, repair or repair from the beginning of construction period to the end of its service period. With the comprehensive development of our country's infrastructure, the repair, restoration and protection of reinforced concrete structures will become increasingly prominent in the future.

[0003] Choosing the correct repair material is the key. With the advent of the era of heavy traffic and fast pace, the ideal repair material should meet the following requirements...

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