粉煤灰漂珠的抗压强度及其影响因素研究  

Research on the Compressive Strength and It's Influence Factors of the Float-bead Fly Ash

作　　者：付晓茹[1] 翟建平[1] 吕鹏[1] 黄蕾[1] 

机构地区：[1]南京大学环境工程系南京大学成矿机制国家重点实验室,南京210093

出　　处：《粉煤灰综合利用》2002年第4期27-29,共3页Fly Ash Comprehensive Utilization

基　　金：国家自然科学基金 (编号 599381 70 );南京大学分析测试基金资助项目

摘　　要：粉煤灰中的漂珠在材料领域应用广泛。由于其颗粒细小 ,用常规方法难以测定其抗压强度。本文设计的静水压力仪可方便地解决这一问题 ,该仪器也可用于其它微集料抗压强度的测定。研究还表明 :对于相同粒级 (<15 5 μm)的不同漂珠来说 ,化学成分是影响其抗压强度的主要因素 ;而作为次要因素 ,漂珠的矿物组成。Float bead fly ash is wildly used in material field. Since the size of the float bead fly ash is very small, so it's hard to measure its compressive strength in common way. In this paper, a hydrostatic pressure meter is designed to measure the compressive strength of various fine fillers. The conclusion can be drawn that if the sieve fractions of different float bead fly ash are same(<155μm), then the primary factor which affect the compressive strength of the float bead fly ash is its chemical com position. And such secondly factors as the compositions mineral phases; particle size distribution and particle shape can also affect the compressive strength of the float bead fly ash to some extent.

关 键 词：粉煤灰 漂珠 抗压强度 化学成分 矿物相组成 粒度 分布 影响因素 

分 类 号：X773[环境科学与工程—环境工程]