工业废渣回收利用的试验分析

Experimental analysis of recycling of industrial waste residue

以张家口地区典型的土凝岩,尾铁矿为研究对象,通过击实试验参量试验,龄期试验,水稳定性试验对工业废渣作为建筑材料进行了可行性分析。结果表明:在养护条件和养护龄期形同的情况下,试件的无侧限抗压强度随土凝岩掺入量的增加而逐渐提高,强度增长率变化不太明显;不论是否浸水,试件的无侧限抗压强度都会随着养护龄期的增长而增大,其中龄期7天到28天,强度增长率最大,然后逐渐趋于平缓,达到最大值。在6%~12%的土凝岩的掺量下,改良试验土料的抗压强度随着土凝岩掺量的增加而增大,增长趋势较平缓。总的来讲,土凝岩改良的尾铁矿的效果是十分明显的,基本可以满足建筑施工要求,这就为今后工业废渣回收利用,解决工业废渣环境污染问题提供了一个较好的基础。

Soil condensate rocks in Zhangjiakou area is typical of the tail ore as the research object,through compaction test parameter test,age test,water stability test of industrial wastes as building materials carried out a feasibility analysis.The results show that the curing conditions and curing age is under the specimens of the unconfined compressive strength of soil with tuff incorporation increased,strength growth rate changes was not obvious;whether or not the water immersion,the unconfined compressive strength will increase with the increase of curing period the specimen,the age of 7 to 28 days,the strength of the maximum growth rate,and then gradually leveled off,reached the maximum.In the 6% - 12% soil,the compressive strength of the improved soil increases with the increase of the amount of soil rock.The trend of growth is flat.In general,the tail ore soil rock improved the coagulation effect is very obvious,can meet the construction requirements,which for the future industrial waste recycling,provides a good basis to solve the problem of environmental pollution of industrial waste.