摘要
以粉煤灰和废玻璃为主要原料,辅以粘结剂和造孔剂等添加剂,烧制了高强复合陶粒。研究了不同配合比和不同焙烧制度等对陶粒性能的影响,得到了制备高强复合陶粒的合适工艺条件。试验结果表明,在一定工艺条件下,所制得的高强复合陶粒的筒压强度可达9.9 MPa,堆积密度为947 kg/m3,1 h吸水率为3.6%;X射线衍射和扫描电镜分析表明,在焙烧粉煤灰和废玻璃的过程中生成了大量影响陶粒强度的非晶态凝胶相,内部产生了大量均匀气孔。
The high strength composite eeramsite was prepared by using fly ash and waste glass as main raw materials and some admixtures such as binder and bubble forming agent. The suitable technological condition of preparing high strength compos- ite ceramsite was given by studying the influence of the different mix proportions and different roasting systems on the properties of ceramsite. The test results indicate that the compressive strength in cylinder of high strength composite ceramsite which was prepared under certain technological condition can reach 9.9 MPa and its bulk density is 947 kg/m3 and the water absorbing rate in one hour is 3.6%. The XRD CX Ray Diffraction）and SEM （Scanning Electron Microscope） analysis show that a large number of amorphous gel phases which affect the strength of ceramsite were produced in the process of roasting fly ash and waste glass and abundant even bubbles were formed inside of the ceramsite.
出处
《新型建筑材料》
2013年第8期32-34,47,共4页
New Building Materials
基金
大连市建设科技计划项目(2010-001)
关键词
粉煤灰
废玻璃
陶粒
筒压强度
X射线衍射分析
fly ash
waste glass
ceramsite： compressive strength in cylinder：X ray diffraction analysis
