<p>Before the reform and opening up the Chinese architecture to brick and concrete structure, the basic use of traditional construction wood template. Internationally used combination of steel formwork and wood plywood template in 1978 began a large-scale application in the Baosteel construction process, then in the country "to steel and wood" policy support, the combination of steel template has been rapidly promoted, occupy the template market Of the half of the country, the traditional wood template is gradually replaced by wood plywood.</p>
<p>With the rapid development of China's industrial and agricultural production, timber and steel consumption per year are very alarming, so in 1993 the State Science and Technology Commission will bamboo mold template and steel bamboo template included in the national scientific and technological achievements to promote the application of the project. After entering the 21st century, with the development of science and technology and engineering practice needs, there are a variety of new templates come out, but occupy the market is still wood, steel, bamboo three materials constitute the template. In 2009, the annual construction template was 585 million square meters, of which the market size of wood plywood template was 300 million square meters, the steel template market size was 153 million square meters, the market size of bamboo plywood template was 122 million square meters.</p>
<p>In short, the construction of mass concrete is a very complex, requiring a high integrity of the project, for concrete quality control problems are also very worthy of the discussion and improvement. In the construction process of mass concrete in the substation, the construction team should strictly control the quality of the concrete on the basis of the requirements of the project. From the aspects of perfecting the construction technology and controlling the concrete cracks, ensure the durability and practicality of the substation.</p>
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