Concrete admixtures have been used in concrete for nearly a hundred years as a product. But dating back to ancient times, in fact, humans have long known the use of some additives in building cementitious materials. The verified data records that in 1885 Europeans already knew that hardening regulators, such as lime and gypsum, were added to concrete. At the end of the 19th century, the use of calcium chloride was all the rage and is still used today. By 1895, water extenders and plasticizers had been added to the concrete for road paving, which effectively improved the durability of concrete.

Formal industrial products were first seen in 1910. When North America was developed in the United States in the 1930s, the concrete pavement was quickly frozen due to the severe cold climate. In order to improve the quality of the pavement concrete, "vinsa resin" was used to improve the durability of the concrete. sex. The real scientific research product is the "Pozzolitn" water reducing agent (Pozzolitn), which was successfully researched and manufactured by E.W. Scxiptrt of MasterBuilder of the United States in 1935, which is mainly composed of lignosulfonate in pulp waste liquid. In 1937, the United States issued the first patent for water reducing agent in history. In 1954, the first batch of testing standards for concrete admixtures was formulated.

The official use of concrete admixtures in my country was in the 1950s. At that time, the rosin saponified air-entraining agent developed by experts from the former Soviet Union was introduced. It was applied in Tianjin Tanggu New Port, Wuhan Yangtze River Bridge and Foziling Reservoir, and achieved certain results. Later, concrete plasticizers using pulp waste liquid from sulfite papermaking and waste honey from sugar industry as raw materials were used. The use of admixtures also started from there.

The development and application of concrete admixtures has long-term significance. Vigorously developing and promoting the application of concrete admixtures is an important way to promote the scientific progress of the construction industry.

In the construction process of construction projects, the use of admixtures can effectively improve the construction environment, facilitate the use of various mechanical equipment, reduce the workload of relevant construction personnel, and ensure the quality of the project. In addition, it can also be used in some harsh conditions. Successfully complete construction tasks in the environment.