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.
Introduction to CLC Concrete Foaming Agent
There are two general cement-based foaming materials, one is chemical foaming, that is, through the chemical reaction of aluminum and other aerating agent and alkali in cement to produce gas; Another is physical foaming, through surfactants and mechanical stirring action to produce gas to join cement foaming. Relatively, chemical foaming is more stable and reliable, and more suitable for large-scale promotion.
CLC Physical Foaming Agent
Clc physical foaming agent or cellular lightweight concrete physical foaming agent is an additive which can reduce liquid surface tension and produce a large number of uniform and stable foam, in order to produce foam agent lightweight concrete.
The foaming agent is a kind of substance that can make its aqueous solution produce a lot of foam when mechanical force is introduced into the air. This kind of substance is the surfactant or surface-active substance. The essence of the foaming agent is its surface activity. Without surface activity, it cannot foam.
CLC Chemical Foaming Agent
Chemical foaming, that is, aluminum and other aerating agent reacts with the cement alkali to produce gas foaming.
Aluminum is a very active metal, which can react with water to replace hydrogen in the effluent and form strong alumina. The surface of aluminum particles exposed to air has been oxidized by oxygen in the air, forming an inert protective film of aluminum oxide, which prevents the contact of aluminum with water.
There is a certain amount of alkaline substances in aerated concrete slurries, such as calcium hydroxide and alumina, which can be dissolved in an alkaline solution to produce metaluminate. When the oxide film on the surface of the aluminum powder is dissolved, the aluminum reacts with water to replace the hydrogen in the effluent and form gelatinous aluminum hydroxide. But it, like alumina, prevents the water from touching the surface of the metal, preventing the reaction from proceeding. But aluminum hydroxide can also dissolve in an alkaline solution to form metaluminate. In this way, in an alkaline solution, the aluminum can continuously react with water to form hydrogen gas until it is used up. And hydrogen gas to approximately spherical bubbles, evenly distributed in the slurry, the slurry volume expansion, hardening to form porous silicate products. The aerating agent used in aerated concrete is mainly active aluminum powder. Of course, the active aluminum powder is specially treated. Because active aluminum powder in the natural environment will occur oxidation and lose activity.
Aerated concrete is a new building wall material made of cement, fly ash, lime, and foaming agent through mixed reaction and steam autoclaved. The pores evenly distributed inside make this material very light, and enable it to block sound, and it also has good heat insulation performance. Most of all, it's made of concrete, so it's very strong. Therefore, aerated concrete has the advantages of lightweight, high strength, heat preservation, sound insulation, and fire prevention.
Precautions When Using the Chemical Foaming Agent:
1. The foaming speed should be appropriate, the quality of concrete will be affected no matter if it is too fast or too slow.
2. The generated hydrogen bubbles should be small in diameter and evenly dispersed. Especially in the full volume of cement slurry pouring mold, it is necessary to disperse evenly to ensure the quality of the pouring mold.
3. The condensation and solidification of cement should not be affected when gas is generated. If the cement setting delays, it will lead to cement strength decline or produce an abnormal cement setting phenomenon.
Suppliers of Concrete Additives
TRUNNANO is a reliable foaming agents supplier with over 12-year experience in nano-building energy conservation and nanotechnology development.
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.
Due to the limited total amount of traditional energy, people have a huge demand for cleaner and greener new energy alternatives. Now, the emergence of graphene is unlocking the possibility of its application in the energy field, which can create a greener, more efficient, and sustainable future. Here Francesco Bonaccorso, Deputy Director of Innovation at the Graphene Flagship Program, explains how his researchers have developed a series of initiatives to bring graphene from the lab to the commercial market. Graphene has become a research hotspot for new materials in the 21st century. Graphene has been adopted by many industries, the most notable of which are healthcare and key material applications.
The development of graphene has brought huge fluctuations in the demand for concrete foaming agent, and the demand for concrete foaming agent will continue to grow in the future. You can contact us for the latest news on concrete foaming agent.
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