[1]刘承尧.龙王山凹凸棒石粘土的研究[J].东南大学学报(自然科学版),1987,17(3):14-22.[doi:10.3969/j.issn.1001-0505.1987.03.002]
 Liu Chengyao (Department of Mechanical Engineering).Study on Longwang Mountain Attapulgite Clay[J].Journal of Southeast University (Natural Science Edition),1987,17(3):14-22.[doi:10.3969/j.issn.1001-0505.1987.03.002]
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龙王山凹凸棒石粘土的研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
17
期数:
1987年第3期
页码:
14-22
栏目:
本刊信息
出版日期:
1987-05-20

文章信息/Info

Title:
Study on Longwang Mountain Attapulgite Clay
作者:
刘承尧
南京工学院机械工程系
Author(s):
Liu Chengyao (Department of Mechanical Engineering)
关键词:
凹凸棒石粘土 吸兰量试验 热湿拉强度 水/土比 蒙脱石 湿型砂
Keywords:
attapulgite clay MB test wet tensile strength W/C ratio montmorillonite green sand
分类号:
+
DOI:
10.3969/j.issn.1001-0505.1987.03.002
摘要:
本文对龙王山凹凸棒石粘土的化学成份、矿物组成、X 射线衍射、差热、红外吸收光谱、电镜、阳离子交换总量、pH 值、膨胀倍数、胶质价、吸兰量、吸水率、耐久性、湿强度、热湿拉强度、干强度等化学、物理以及机械性能进行了讨论、试验并作了综合分析。对不同水/土比和加入不同Na_2CO_3量活化处理粘土型砂的强度等性能进行了试验。研究结果表明:龙王山凹凸棒石粘土属于含蒙脱石粘土,塑性好,且具有较高的湿压强度和热湿拉强度,性能与膨润土类同,是一种品位良好的铸造用粘土。
Abstract:
The chemical,physical and mechanical properties of Longwang Mountain attapulgite clay,such as chemical composition,mineral constitution,X-ray diffraction,differential thermal analysis (DTA),infrared ray absorption spectrum,electron microscope photograph,positive ion-exchange capacity,pH value,dilation value,colloidal value,MB test,water absorption,durability, green compression strength,wet tensile strength,dry compression strength, etc.have been investigated.A variety of properties of clay bonded sand have been tested when various W/C ratio and soda-activated state were chan- ged.The results of experiment show that Longwang Mountain attapulgite- clay belongs to montmorillonite-attapulgite clay,it has a higher green compre- ssion strength,a higher wet tensile strength and a good plasticity,its proper- ties are similar to bentonite,it can be used as foundry clay and suitable for making green sand moulds.

相似文献/References:

[1]潘钢华,夏艺,王然良,等.煅烧凹凸棒石粘土对干粉砂浆性能的影响[J].东南大学学报(自然科学版),2006,36(1):129.[doi:10.3969/j.issn.1001-0505.2006.01.026]
 Pan Ganghua,Xia Yi,Wang Ranliang,et al.Influence of calcined attapulgite clay on properties of dry-mixed mortar[J].Journal of Southeast University (Natural Science Edition),2006,36(3):129.[doi:10.3969/j.issn.1001-0505.2006.01.026]

更新日期/Last Update: 2013-05-01