Faced with the fact that natural sand resources are exhausting, high costs lead to consequences of illegal sand mining on rivers … sand crushed from stone materials is a new choice. many advantages.
The stone is mined from the quarry of the company, after grinding, grinding into stone 1-2. Preeminent magnetism of new building materials Being put into trial production since May 2018, up to now, the sand crushed source from stone has been promoting its superiority as well as attraction to the construction market. Mr. Mai The Tinh – Director of Phu Son Trading Company Limited (Nga Son District, Thanh Hoa Province) said: “With abundant raw materials from the limestone quarries in the province in particular, and grinding technology modern treatment of impurities before putting finished products on the market; The durability of buildings is also appreciated higher than natural sand, which is the advantages that this new building material shows. As an enterprise located in Nga Son district (Thanh Hoa), for a long time, the supply of natural sand for its construction works as well as the district market has faced many difficulties when the sand reserve in the host area. The weak point is that the salty sand can only be leveled, so it is largely limited in the construction works, to meet the demand, the construction sand has to be imported from other districts such as: Thieu Hoa, Ha Trung, Vinh Loc … Large transportation costs leading to higher costs make investment in construction face many difficulties. Mr. Tinh added: At the end of 2017, after field testing from some southern markets as well as abroad, the Company applied and invented a new investment in a production line of crushed sand from rock at a cost. only equal to 20% (about 20 billion VND) compared with the lines imported from abroad. Crushed sand products will contribute to help businesses create a closed production process. The stone is mined from the quarry of the Company after grinding, grinding finished products (stone 1-2), will be screened, classified and put into the system of crushers, small screening into sand. The next step, crushed sand will be put into the system of sedimentation tanks, wash and treat impurities before the finished product is sold to the market. In order to ensure the environment, during the production and grinding process, there is a dust misting system. The process of putting into sedimentation tanks, washing, stone dust will also be deposited and reused as bricks … Thus, the production of crushed sand will be very suitable for quarry mining enterprises, increasing the first choice. private businesses. Mr. Mai Van Nguyen – Production executive officer of Phu Son Trading Co., Ltd. said: With an output of 500m3 / day, the unit is providing for all projects and works on construction in Nga Son district. . In addition to the superiority of the product, with the automated process, only 2 workers to operate the line are contributing to reduce labor costs, reduce human labor, and lower product costs. Meanwhile, according to enterprises in Nga Son district, materials from crushed sand are the number one choice among many large construction projects as well as small construction needs. among the people. In addition to the durability of the project, sand crushed materials also help businesses, people reduce the cost of transfer, cost … Opportunities open for businesses Mr. Luu Van Hai – Head of Economic – Infrastructure Division of Nga Son district said: With the characteristics of the district bordering the sea, the sand reserve is mostly salty, the introduction of crushed sand in the area is contributing to solving the problems. difficulties for businesses in construction investment. In addition, the Provincial People’s Committee also encourages the use of crushed sand in construction works, so this source of construction materials is currently popular and popular. “One of the typical projects using crushed sand such as: The project to solidify the Hung Long canal, through the area of Nga Son town, Thanh Hoa has been put into use and the durability has been proven over time”, Mr. Hai cited. 
Conduct sorting and put into the system of crushers, small screening into sand. However, in addition to the superiority in production as well as the durability of the buildings, the development of this building material source still faces some difficulties. Specifically, according to Mr. Hai, this new material source has not been disseminated, the number of units investing in the production line is not much, leading to the competition on product prices is not high. If it is soon popularized for construction investment and more widely, this new source of construction materials will be a gradually replacing material source for natural sand and gravel. Learning from enterprises, Mr. Nguyen Trong Cuong – Deputy Director of Nien Cuong Co., Ltd. (Nghi Son town, Thanh Hoa) exchanged: Currently, the source of crushed sand material has been one or two units in the area. production investment town. On the business side, crushed sand contributes to increasing investment choices, making use of raw materials in the mining process … However, Mr. Cuong cannot help but wonder when this product has not yet been popularized. , product cost is higher than natural sand, leading to difficulties and barriers in the selection of projects and works. According to research, the province has 2 grinding sand production lines with a capacity of 150 tons / hour of Phu Son Trading Co., Ltd. (Nga Son district) and Ha Lien Construction and Trade Co., Ltd. (Nong district). Drain). There are also a number of small production lines such as Nghi Son town … According to the construction material development plan to 2025, with a vision to 2035 of the province, crushed sand from stone will be developed in many areas. The mine sector is available with raw materials to supply the market, with a total expected capacity of 1.9 million m3 / year. This is considered an open opportunity for businesses in the province to invest and develop.
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