kara liu

摘要： Most of the ceramic particle reinforced steel matrix wear resistant composite materials are prepared the surface composite material. Recently, our company and Zhengzhou University Joint successful Researched the low alloy steel / ZrO2-Al2O3 the honeycomb ceramic composite materials research and appl 阅读全文

摘要： At the monent, with the accelerated process of urbanization, the construction waste also follow, the number of construction waste in China has accounted for 30% to 40% of the total municipal waste. Recycling rates in many cities in China has reached about 80%, such as: Hong Kong, Taiwan is not backw 阅读全文

摘要： Recently, the central bank announced that the plan of cut RMB interest rates , financial institutions year benchmark deposit and lending interest rate are cut by 0.25 percentage points,the other deposit and lending interest rates as well as individual housing provident fund deposit and lending rates 阅读全文

摘要： In recent years, with the rapid development of the infrastructure investment and urbanization, the demand of the national aggregate and artificial sand are also in a period of rapid growth. However, the market is a sword, the gravel industry development not only led to the development of related ind 阅读全文

摘要： when preparing the concrete,we need fine aggregate and coarse aggregate sand,these stone skeleton adn sand provide support for the concrete. With the increase quality,quantity demand of the sand, aggregate in the market , the quality problems arising from the project is becoming more serious than be 阅读全文

摘要： Due to the large mineral resources development and utilization, the available resources continues decrease, the ore mining grade gradually dwindles, as a result, the smelting and subsequent processing of the ore-dressing product quality requirements are increasing. At the same time, human environmen 阅读全文

摘要： We all clearly know that the soaring carbon dioxide emission will lead to the global warming, and global warming is a serious threat to the survival and development of the whole humanity. In fact, in the carbon emissions of urban, 60% comes from the construction of carbon dioxide emissions and const 阅读全文

摘要： In recent years, the qualified natural sand resources are on the less , so the artificial sand gradually became the main source of construction work . Currently, our Beijing Olympic project, Xiaolangdi reservoir Baoquan reservoir, Hongqiqu reservoirs, Gezhouba Tianwan River Power Plant, these key na 阅读全文

摘要： Recently, the overall goal of our transport infrastructure was freshly baked during the 12-5 period , these objectives pointed out that we should build the nationwide conprehensive transportation network which based on the ordinary county road, ountry road, backbone the railway, national highway, pl 阅读全文

摘要： As we all know, the gravel aggregate concrete production is inseparable from the excellent quality sand , gravel aggregate quality depends on the sand and gravel aggregate production line equipment configuration, such as the stones impact breaker and impact sand making produced shapes cubic, which i 阅读全文