Sulfate-corrosion-resistant cement and cement mortar in marine environment as well as preparation method and application thereof
A technology that is resistant to sulfate cement and marine environments. It is applied in cement production, soil protection, and infrastructure engineering. It can solve the problems of lack of research on high-pressure jet grouting pile slurry materials, and achieve low cost, short construction period, and wide sources. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0042] In the second aspect, the preparation method of the above-mentioned sulfate-resistant cement, the specific steps are:
[0043] calcining the shells, and grinding the shells after calcination to obtain shell lime powder;
[0044] Anhydrite powder is obtained by crushing and grinding the anhydrite;
[0045] Grinding the ball clay, and then calcining at high temperature to obtain calcined ball clay;
[0046] Sulfate-resistant cement is obtained by mixing shell lime powder, anhydrite powder, and calcined ball clay.
[0047]In some embodiments of the present invention, the shell is calcined at a temperature of 900-950° C., and the calcined time is 1.5-3 hours.
[0048] In some embodiments of the present invention, the fineness of the shell powder is 0.05-0.15mm, and the sieve residue is <3%; preferably, the fineness is 0.05-0.1mm.
[0049] In some embodiments of the present invention, the fineness of the anhydrite after grinding is 0.05-0.15mm, and the sieve residue is <3...
Embodiment 1
[0071] Prepare the slurry material of high-pressure rotary grouting piles resistant to sulfate erosion in the marine environment. The cement is made of the following raw materials in weight ratio: 28 parts of shell lime powder; 18 parts of anhydrite; 54 parts of calcined ball clay. Concrete slurry preparation methods include:
[0072] S1: Preparation of shell lime powder. Put scallops, oyster shells, etc. in a high-temperature furnace to calcinate at 920°C, keep warm for 1.5-3 hours, cool to room temperature, take out, grind to a fineness of 0.08mm, and the sieve with a square hole sieve is 2%;
[0073] S2: Preparation of anhydrite powder. Crush and grind the anhydrite to a fineness of 0.08mm, and the residue on the square hole sieve is 2%;
[0074] S3: Preparation of calcined ball clay. Grind the ball clay to a fineness of 0.08mm, and the sieve residue of the square hole sieve is 2%, calcined in a high-temperature furnace at 870°C, kept for 2.5h, cooled to room temperature...
Embodiment 2
[0077] The difference from Example 1 is 30 parts of shell lime powder; 18 parts of anhydrite; 52 parts of calcined ball clay.
[0078] S1: Preparation of shell lime powder. Put oyster shells and scallops in a high-temperature furnace to calcinate at 950°C, keep warm for 1.5-3 hours, cool to room temperature, take them out, and grind them to a fineness of 0.08mm, with a square-hole sieve residue of 2%;
[0079] S2: Preparation of anhydrite powder. Crush and grind the anhydrite to a fineness of 0.08mm, and the residue on the square hole sieve is 2%;
[0080] S3: Preparation of calcined ball clay. Grind the ball soil to a fineness of 0.08mm, and the sieve residue of the square hole sieve is 2%, calcined in a high-temperature furnace at 850-900°C, kept for 1.5-3h, cooled to room temperature, and taken out;
[0081] S4: Mix shell lime powder, calcined ball clay, and anhydrite powder evenly according to the weight ratio to obtain sulfate-resistant cement.
PUM
Login to view more Abstract
Description
Claims
Application Information
Login to view more - R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap