High-strength frost-resistant permeable concrete and preparation method thereof
A permeable concrete, high-strength technology, applied in the field of permeable concrete, can solve the problems of bulk density, large specific surface area, large cementing area of the slurry, and many contact points, etc., to improve the urban environment, obvious economic and social benefits, and easy maintenance. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0043] A high-strength frost-resistant permeable concrete, prepared from the following components by weight: 30 parts of Portland cement, 3.5 parts of fly ash, 95 parts of crushed stone, 0.005 parts of calcium stearate, and 0.0002 parts of oleic acid , 0.4 parts of water reducing agent, 0.0006 parts of saponin air-entraining agent, and 8 parts of water.
[0044] The saponin air-entraining agent is quinoa bran saponin, and the preparation method of the quinoa bran saponin is: 500g quinoa bran is added to 1600g water, 0.1g cellulase, 0.1g pectinase, 0.05g of neutral protease, mixed evenly, heated to 40°C, kept at 40°C for 3 hours, added 1500g of ethanol, mixed evenly, heated to 60°C, ultrasonically extracted at 60°C for 40 minutes, ultrasonic frequency was 20KHz, power was 350W, Cross 100 mesh sieves then, the filtrate is crossed 500g D101 type macroporous adsorbent resin, and the filtrate flow velocity is 1BV / h, then with massfraction is 30% ethanol aqueous solution eluting D10...
Embodiment 2
[0049] Basically the same as Example 1, the only difference is that in this Example 2: the preparation method of modified sodium lignosulfonate is: 100g sodium lignosulfonate is added to 250g water, at 40 ℃, with 200 rpm Stir for 60 minutes at a speed of 1 minute, add 150 g of an alcohol amine modifier, stir at 40 ° C for 60 minutes at a speed of 200 rpm, raise the temperature to 65 ° C, add 120 g of formaldehyde solution with a mass fraction of 37%, and heat it at 70 ° C Reflux reaction for 12 hours, remove the solvent water through distillation, add the obtained product into 200g ethanol, stir at 30°C at a speed of 200 rpm for 10 minutes, then centrifuge at a speed of 8000 rpm for 40 minutes, and The precipitate obtained by centrifugation was dried at 50° C. for 24 hours to obtain modified sodium lignosulfonate. The alcohol amine modifier is 3-amino-1-propanol.
Embodiment 3
[0051] Basically the same as Example 1, the only difference is that in this Example 3: the preparation method of modified sodium lignosulfonate is: 100g sodium lignosulfonate is added to 250g water, at 40 ℃, with 200 rpm Stir for 60 minutes at a speed of 1 minute, add 150 g of an alcohol amine modifier, stir at 40 ° C for 60 minutes at a speed of 200 rpm, raise the temperature to 65 ° C, add 120 g of formaldehyde solution with a mass fraction of 37%, and heat it at 70 ° C Reflux reaction for 12 hours, remove the solvent water through distillation, add the obtained product into 200g ethanol, stir at 30°C at a speed of 200 rpm for 10 minutes, then centrifuge at a speed of 8000 rpm for 40 minutes, and The precipitate obtained by centrifugation was dried at 50° C. for 24 hours to obtain modified sodium lignosulfonate. The alcohol amine modifier is isobutanolamine.
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
| height | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More