Antifouling and corrosion-resistant marine cement and preparation method thereof

Abstract

The invention discloses antifouling corrosion-resistant marine cement and a preparation method thereof. The marine cement is prepared from the following raw materials in parts by weight: 32-48 parts of marine silicate cement clinker, 1-1.5 parts of a modified polycarboxylic acid water reducing agent, 5-15 parts of laver powder, 2-6 parts of garlic powder, 10-15 parts of acrylate, 1-5 parts of silane coupling agent microcapsules, 30-40 parts of basalt crushed stone, 3-5 parts of nano silica, 0.5-1 part of calcined attapulgite and 10-15 parts of clinker marine sand. The slurry structure preparedby the marine cement product has good compactness and volume stability, and the formed concrete has excellent impermeability, bacteriostasis, antifouling and crosslinking properties, and has high chloride ion diffusion resistance and sulfate erosion resistance, thus meeting the requirements of marine engineering construction.

Description

Technical field [0001] The invention relates to the technical field of marine engineering building materials, in particular to anti-fouling and corrosion-resistant marine cement and a preparation method thereof. Background technique [0002] In recent years, countries all over the world have attached great importance to the development of marine resources. The construction of marine projects such as ports, seawalls, coastal protection, cross-sea bridges, and offshore gas stations in China has developed rapidly. The marine environment is a complex corrosive environment. In this environment, seawater itself is a strong corrosive medium. At the same time, waves, waves, tides, and currents produce low-frequency reciprocating forces and impacts on building components, plus marine microorganisms, Fouling such as attached organisms and their metabolites directly or indirectly accelerate the corrosion process. Therefore, in order to make marine engineering buildings have a longer servic...

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Problems solved by technology

Existing anti-fouling and anti-corrosion projects rely on painting anti-fouling paint on the outer surface of construction projects, but we all know that it is difficult to paint paint in water, and even if it can, it will produce a certain degree of pollution. Therefore, using paint The method of brushing paint has certain limitations in making marine engineering buildings have anti-fouling and anti-corrosion effects, and those marine engineering buildings that need to be directly formed in water are difficult to achieve anti-fouling and anti-corrosion effects

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