Effektiv måte å forbedre styrken til skumbetong

With the widespread application of foam concrete, the strength issue has also become an important issue restricting the development of foam concrete.

We should improve the strength of foam concrete from the following aspects:

1. Variasjonen av sement. Sementtyper med høy tidlig og sen styrke (slik som dobbeltfast Portland-sement) kan hensiktsmessig redusere andelen sement, and cement varieties with low late strength or low early strength should increase the cement proportion;

2. Styrkeklasse av sement. High-strength grade cement can reduce the proportioning amount, og sement av lav styrke bør øke sin proporsjonsmengde;

3. Kvaliteten på sement. For the new type of dry-process rotary kiln cement, the proportion can be appropriately reduced, while the proportion of vertical kiln cement or cement with a large amount of mixed materials should be appropriately increased;

4. The density and strength requirements of the product. Krav til lav tetthet eller høyere styrke bør øke sementforholdet, krav til høy tetthet eller lavere styrke kan redusere sementforholdet;

5. The variety and activity of active micro-aggregates (tilsetninger). Bruk av høyaktive mikrotilslag kan redusere andelen sement (som ultrafint slagg), mens bruk av lavaktive mikroaggregater (som sekundær flyveaske) kan øke andelen sement;

6. Add appropriate admixtures, such as foam concrete enhancers.

Sikter på styrken til skumbetong, skumbetongforsterkere, selvisolerende blokkforsterkere, skumsement isolasjonsplater forsterkere, lette skilleplateforsterkere er utviklet for styrken til skumbetong. The enhancers made by nano-modification technology have the following significant features:

1. It has good workability with industrial wastes such as cement, flyveaske, slagg, steel slag, steinpulver, sand, osv., and can make cement products set early, shape early, demould early, exert strength early and put into use;

2. It can improve the plasticity of cement, speed up the turnaround time of equipment utilization and increase labor productivity, and significantly increase the 3d, 7d early strength and 28d late strength of cement products;

3. The addition amount is small, the performance is excellent, and the production cost is saved. The addition amount is 2-3kg per cubic meter;

4. It can improve the rheology of cement, improve the performance of cement, and can obviously improve the compressive and flexural properties of cement products;

5. The chemical performance is stable, the dosage is not sensitive, the thickening curve shape is good, and it can be used with other additives;

6. It has no adverse effects on other properties of cement slurry, and does not destroy the formation and development of cement strength;

7. It has a wide range of applications and can be applied to a variety of grades of cement.

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