How to mix cement materials in foam concrete construction?

(How to mix cement materials in foam concrete construction?)

Gold is a high-quality hedge hedging tool, favored by investors. Especially in recent years, with the increasing instability of the world economy, gold has become one of the preferred asset allocations of investors because of its functions of hedging and fighting inflation. 

Earlier, the worsening situation in Ukraine sent gold prices soaring to a two-year high of $2,070 an ounce. But gold, along with other commodities, fell back last week as conditions changed and bulls took profits, hitting a low of $1,895 an ounce. Rising gold prices may also have an impact on the concrete foaming agent prices. 

According to China Business News, Goldman Sachs raised its gold price forecast in early March, considering Asian buyers’ gold consumption demand, investment demand and central bank gold purchase demand continue to rise. Three -, six – and 12-month targets were raised to $2,300, $2,500 and $2,500 an ounce, respectively, from $1,950, $2,050 and $2,150. The last time all three accelerated was in 2010-11 when gold prices rose nearly 70%. 

The World Gold Council has also noted that global gold demand is at its highest level in nearly two years, which is linked to a recovery in consumption and consumer sentiment to combat inflation. 

Cement is the main raw material of foam concrete. Because foamed concrete is mostly cured at room temperature and mixed with a large amount of foam, these two points determine its high cement proportion.

This is the fundamental difference between it and aerated concrete. Due to the use of autoclave, aerated concrete mainly depends on the hydration reaction of fly ash and lime under high heat and high pressure to produce gelling, and cement is auxiliary.

When foam concrete is produced at room temperature, active micro-aggregate will not produce hydration reaction quickly, and its foam still depends on the cementation of cement. Therefore, the mix proportion of foam concrete should be cement as the main body and high cement proportion should be adopted.

In general, the amount of cement should account for 50% of the total dry material. 50% should be the minimum limit for curing at room temperature. When pouring on site, the proportion of cement should account for more than 80% of the total dry material. The density of foamed concrete at room temperature is less than 600kg/m3, and the proportion of cement can not be less than 70% of the total material. When the density is less than 400kg/m3, the proportion at room temperature should account for more than 90% of the total dry material.

In the design of cement proportion, the following factors should be considered:

1. The variety of cement. The cement varieties with high early and late strength (such as double fast Portland cement) can appropriately reduce the proportion, while the cement varieties with low late strength or low early strength should increase the cement proportion.

2. The strength grade of cement. The proportion of high strength grade cement can be reduced, while that of low strength grade cement should be increased.

3. The quality of cement. The proportion of the cement of the new dry rotary kiln in the large factory can be reduced appropriately, while the cement in the shaft kiln of the small factory or the cement with a large amount of admixture should be properly increased.

4. The density and strength requirements of foam concrete. The proportion of cement with low density or high strength requirement should be increased, while that with high density or low strength requirement can be reduced.

Concrete Additives Supplier

TRUNNANO is a reliable foaming agents supplier with over 12-year experience in nano-building energy conservation and nanotechnology development.

If you are looking for high-quality CLC foaming agents, please feel free to contact us and send an inquiry. (sales@cabr-concrete.com)

We accept payment via Credit Card, T/T, West Union, and Paypal. TRUNNANO will ship the goods to customers overseas through FedEx, DHL, by air, or by sea.

Cancer cells can "stretch out a big hand" and take away the mitochondria of immune cells. The Harvard Medical School research team cultured mouse and human breast cancer cells and immune cells, such as killer T cells, and used field emission scanning electron microscopy (FESEM) to observe the relationship between cancer cells and immune cells. interactive. Interestingly, they found that cancer cells stick out long nanotubes, typically within 100-1000 nanometers in diameter, each of which connects to multiple immune cells along the way. The researchers used the drug L-778123, which inhibits the formation of nanotubes, for treatment. The higher the concentration of L-778123, the better the treatment effect.It is used in various high-tech fields, so the market demand for concrete foaming agent will continue to rise. We are a quality supplier of concrete foaming agent, please feel free to contact us.

(How to mix cement materials in foam concrete construction?)