Auala aoga e fa'aleleia atili ai le malosi ole sima foam

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. The variety of cement. Cement types with high early and late strength (such as dual-fast Portland cement) e mafai ona fa'aitiitiga talafeagai le vaega ole sima, and cement varieties with low late strength or low early strength should increase the cement proportion;

2. Malosiaga o le sima. High-strength grade cement can reduce the proportioning amount, ma le sima tulaga maualalo-malosi e tatau ona faateleina lona aofaiga faavasegaina;

3. Le lelei ole sima. 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. O le maualalo o le mamafa poʻo le maualuga o le malosi e manaʻomia e tatau ona faʻateleina le fua sima, maualuga maualuga poʻo manaʻoga malosi maualalo e mafai ona faʻaititia le fua sima;

5. The variety and activity of active micro-aggregates (mea fa'afefiloi). O le fa'aogaina o mea fa'apipi'i maualuga e mafai ona fa'aitiitia ai le sima (e pei ole pa'u ultra-fine), a'o le fa'aogaina o micro-aggregates maualalo (e pei o le pefu lele lona lua) e mafai ona faateleina le vaega o le sima;

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

Aiming at the strength of foam concrete, foam concrete enhancers, self-insulating block enhancers, foamed cement insulation board enhancers, lightweight partition board enhancers have been developed for the strength of foam concrete. The enhancers made by nano-modification technology have the following significant features:

1. It has good workability with industrial wastes such as cement, lefulefu lele, ma'a, steel slag, stone powder, oneone, ma isi., 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.

O le Cie-China.org o le ta'uta'ua lea e tu'uina atu mea fa'apipi'i sima e tu'uina atu ai so'o fa'afu, superplasticizer,foam sima fa'aleleia malosi mo sima mama, poloka CLC. Afai o e su'emea fa'asusu, faamolemole lagona le saoloto efaafesootai matou.