废石粉渣制备混凝剂及其除浊净水效果研究

利用废石粉渣制备无机混凝剂，并研究所得初产品对硅藻土悬浮液和受污湖水样品进行处理的适宜操 作条件以及除浊净水效果。结果表明，利用某些废石粉值制备的混凝剂有较好效果，但制备工艺有待改善。

浅谈水泥稳定石粉渣底基层、基层施工

水泥稳定碎石基层是兴用于高等级公路底基层或基层的一种半刚性路面结构型式，由于其众多优点而得到广泛的推广和应用，文章对水泥稳定石粉渣底基层、基层施工的准备工作、施工要点以及操作方法进行了详细的阐述。

石渣石粉垫层在室内回填工程中的应用

简述海信集团信息产业园工程概况 通过对该工程软土地基回填处理方案的论证 ,介绍各种回填处理方案的适用性 ,并针对各种方案的优缺点进行综合分析及选择 着重论述换填石渣法加固技术及石粉垫层在本工程中的应用 ,然后以核子密度仪测试的压实系数结果对该方法的运用进行验证 。

Sulfuric Acid Resistance of Concrete with Blast Furnace Slag Fine Aggregate

The deterioration of concrete by sulfuric acid attack in sewage environments has become a serious problem for many existing sewage structures. In this study, the properties of concrete using the blast furnace slag have been examined. It was shown that by using the blast furnace slag fine aggregate and blast furnace slag fine powder, it is possible to enhance the resistance of mortar and concrete to sulfuric acid. The resistance to sulfuric acid of mortar and concrete can be improved by using a blast-furnace slag fine aggregate in the total amount of fine aggregate. When mortar or concrete reacts to sulfuric acid, dihydrated gypsum film is formed around the particulate of the fine aggregate. This dihydrated gypsum film could retard the penetration of sulfuric acid, thus, improving the resistance to sulfuric acid. Furthermore, it has been proved that the relationship between the erosion depth by sulfuric acid attack and the product of immersion period and concentration of sulfuric acid can be expressed linearly. However, this relationship is dependent on the type of materials of concrete.