The solution to the collapse of foam concrete

Brazil, the world's largest coffee bean producer, recently announced that it is facing the worst drought in 91 years, affecting local hydropower generation and agricultural foam concrete keeps going up.


The common problems of foamed concrete are bubbling, cracking, collapse, shrinkage, and other phenomena. To treat these phenomena, the proper medicine can be found, and the cause can be effectively solved.

The main reason for the collapse of foamed cement is that the cement solidification speed is too slow. We can solve this situation from the following aspects

1. Add accelerator to improve the setting time of foamed cement

Accelerators are used in more and more concrete applications. Foamed cement has high requirements for accelerators. It is not just a fast setting but also needs to be adapted to the performance of foamed cement, and accelerators cannot be added. After affecting the foaming situation.

2 Add an early strength agent to improve the early strength of foamed cement and reduce the stress generated during the exothermic process of cement hydration. Only when these two forces are balanced can it be ensured that the foamed cement will not crack and collapse in the later stage.

12

3. An appropriate amount of sulfoaluminate cement can be added, which many manufacturers choose to use in winter, and the cost performance is still relatively high. However, this amount of addition should also be paid attention to. It should not be added blindly. After many customers add sulfoaluminate cement, the finished product becomes very brittle in the later stage, without toughness, low strength, and severe pulverization. So we still have to adjust according to the current situation.

4 The water-cement ratio is not suitable. Collapse, retraction, bleeding, insufficient strength. To a large extent, it has something to do with the inappropriate water-cement balance. The adjustment of the water-cement ratio is a technical activity that requires trial and error. It has a lot to do with the cement of foamed cement and the fly ash aggregate, and it needs to be practiced repeatedly according to the actual situation. In this, we can add a plasticizer to adjust the water-cement ratio. This effect is very immediate.


The above contents are some solutions summed up by Tongrun according to the reasons for the collapse of foamed cement. If you encounter other problems or reasonable solutions in the actual process, you are also welcome to communicate us.


The resurgence of the global COVID-19 pandemic and the impact of the Russia-Ukraine conflict continued to cause high volatility in commodity prices. Stubbornly high inflation and rising commodity prices are likely to influence each other and thus push each other higher. The price of the foam concrete may not decrease significantly in the short term.

Inquery us

Our Latest Products

High Purity Graphite Powder Flake Graphite C Powder CAS 7782-42-5

Item No.: Tr-C High purity graphite powder flake graphite is natural crystalline graphite, which looks like fish phosphate, belongs to the hexagonal crystal system, and has good high-temperature resistance, electrical conductivity.Purity: 99…

Chromium Chip Chromium Sheet Chromium Flake CAS 7440-47-3

Item No.: Tr-Cr02 Chrome chip hard and brittle steel gray bright metal with hardness like corundum and lower melting than platinumPurity>99.95%Product name: chromium flake…

Succinate monoglycerides

About Succinate monoglycerides:Milky powder, insoluble in cold water, can be dispersed in hot water and hot grease.TRUNNANO is a trusted global Succinate monoglyceride. Feel free to send an inquiry to...…

0086-0379-64280201 brad@ihpa.net skype whatsapp