摘要本次毕业设计试验首次采用在陶粒中加入钢纤维增韧方式以提高陶粒强度，具有极大的潜在应用价值和社会效益。主要体现在以下三个方面：1、在制备陶粒过程中采用大掺杂量的废灰加气混凝土，若实现工业化，可以有效缓解建筑固体废弃物对环境的污染；2、采用在压力1MPa,187℃的条件下养护10h的水热合成方式,极大减少了生产能耗；3、制备出了筒压强度为33。5MPa的高强陶粒，远远高出之前报道的17MPa，为配制高标号轻集料混凝土提供了可能。87847

研究了钢纤维体积掺量为0-3。0%两组不同成分体系的陶粒，一种为粉煤灰-水泥基纤维增韧陶粒，以粉煤灰为硅质材料，水泥为钙质材料，采用钙硅比为0。7，黄砂为粗骨料，Q1-80切碎钢纤维为增韧相，采用水热合成的方式，最终得到了1h吸水率不高于3。5%，筒压强度为25-33。5MPa的陶粒；另外一种为生石灰-废灰加气-粉煤灰基陶粒（FAAC陶粒），以生石灰为钙质材料，粉煤灰为硅质材料，废灰加气混凝土为辅助料，黄砂为粗骨料，Q1-80切碎钢纤维为掺杂相，采用钙硅比为0。73，在相同的水热合成条件下，制得了筒压强度为12MPa-24MPa的陶粒。研究发现切碎钢纤维的掺入对陶粒筒压强度有明显的增韧效果。

采用混合陶粒配制了CL30-CL80六组不同设计强度的陶粒混凝土，采用FAAC-1。5%配制了CL40-CL80五组不同设计强度的陶粒混凝土。成功配制出了CL70及其以下标号的混凝土，干表观密度为2000kg/m3-2100kg/m3，属于次轻集料混凝土。

毕业论文关键词  纤维增韧硅酸盐壳层陶粒   水热合成   复合硬质材料   轻集料混凝土

毕业设计说明书外文摘要

Title    Preparation of steel fibre reinforcing shell-ceramsite   and research of Its performance                                                                   

Abstract Steel fibre was firstly used to reinforce shell-ceramsite and high performance shell-ceramsite with huge potential application and social effect was prepared by hydrothermal synthesis under the condition of(187℃,1MPa) saturated steam。

Firstly,wasted  aerated concrete(WAC) was vastly utilized on the progress of ceramsite prepatation,which can remarkably mitigate pollution caused construction waste;secondly,energy consumption is enormously reduced;finally,high strength ceramsite with the cylinder compressive strength of 33。5MPa was prepared,which far exceeds 17MPa ever reported,provides a possibility to prepare high-grade lightweight aggergate concrete such as CL70 and CL80。

Different fibre mixing amount from 0 to 3。0% ceramsite were studied。It shows that the cylinder compressive strength(CCS) of ceramsite is remarkably improved with the increase of fibre mixing amount。Raw material compositions were silicate(fly ash), calcium(cement or lime),quartz and steel fibre(Q1-80)。When the Ca/Si ratio was 0。7,CCS was up to 33。5MPa。When the Ca/Si ratio was 0。73 and WAC was additive

with the amount of 35%,CCS was from 12MPa to 24MPa with the change of fibre mixing amount。

Mixing ceramsite was used to prepare CL30-CL80 concrete and WAC-1。5% ceramsite was utilized to prepare CL40-CL80 concrete，28d compressive strength of all grade lightweight aggregae were meet requirement but CL80。

Keywords   fibre reinforce silicate shell-ceramsite   hydrothermal synthesis

 composite hard material   lightweight aggregate concrete

目   次

1 引言  1

2  实验原材料及测定方法   4