The chloride ions contained in sea sand can cause corrosion of steel bars in traditional concrete, which in turn leads to concrete cracking, so the preparation standards of sea sand concrete are very strict. Recently, the General Office of the Ministry of Housing and Urban-Rural Development issued a notice on the industry standard "Technical Specifications for the Application of Sea Sand Concrete (Partial Revision Draft)" for public comment. In the future, the production requirements of sea sand concrete may change, and relevant enterprises must pay attention to it. It is understood that this partial revision involves the revision of 6 articles, namely Article 30.Article 1, Article 30.Article 4, Article 41.Article 2, Article 42.Article 2, Article 51.Article 3 and Article 52.1 article;Appendices A and B have been added (see annexes for details).
What are the advantages of sand making building?
1.High degree of mechanization.
By adopting the mode of prefabricated building, compared with the traditional production mode, the prefabricated structural components are produced by the factory with high precision, and the product production is controlled by high-tech production equipmentThe on-site construction realizes mechanized operation, reduces the error of manual operation, provides more guaranteed quality, makes the construction safer, and also improves the construction efficiency by 4-5 times.
2.The process is green and environmentally friendly.
The sand making process of the sand making building realizes the value concept of low-cost and pollution-free sand making. The dry sand making method used does not require water, so no sewage or sludge is generated at the sand making site. The developed production equipment is operated under negative pressure, which avoids dust spillage during operation.
3.The production line is intelligent.
The sand making building has an intelligent control system and a unique algorithm to achieve intelligent control in the process of product production and operation. With this system, the gradation, fineness modulus and stone powder content of the finished sand can be continuously adjusted. Through the control of the system, it can carry out operations such as fault alarm, one-key start and stop and automatic execution of the production process, which is simple and easy to use, which can greatly reduce labor costs, so as to achieve the effect of reducing production costs.
4.Innovative equipment with high production capacity.
The sand making building is developed and innovated on the basis of vertical shaft impact crushing, air screening and other technologies, and the five-hole rotor structure is improved to achieve self-generated crushing and high-density self-generated crushing, improve the particle shape of the finished sand, and increase the proportion of fine aggregates
The combination of winnowing, air screening and other technologies can realize the separation of out-of-gauge materials, finished sand and dust, and improve the screening efficiency
The intelligent control of the production line realizes the adjustable fineness modulus of the finished sand, the continuous adjustment of the gradation, the controllable stone powder content, the one-key start and stop, and the automatic execution of the production process.
The dry sand production line has spread all over the country in many provinces and regions, providing sufficient material foundation for local development needs. We are committed to providing customers with good services, from program formulation, equipment transportation, installation and commissioning, operation training, to later return visits, there are dedicated personnel who are fully responsible, so that your choice has no worries.