烃污染对混凝土强度的影响

IF 0.3 Q4 ENGINEERING, GEOLOGICAL Geotechnical Engineering Pub Date : 2001-07-01 DOI:10.1680/GENG.2001.149.3.189
S. Wilson, N. Langdon, P. Walden
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引用次数: 7

摘要

棕地的开发通常需要将基础混凝土置于受碳氢化合物污染的土壤中。人们普遍认为,碳氢化合物会影响混凝土的凝结和硬化,从而降低混凝土的长期强度。然而,支持这一观点的定量数据有限。在各种碳氢化合物中固化的混凝土立方体进行了实验室测试。结果表明,碳氢化合物确实使混凝土的长期强度增益降低了25%。这可以在设计中考虑,从而避免了昂贵的套管或表面保护系统的需要。现有证据表明,石油碳氢化合物对已达到设计强度的硬化混凝土的影响是有限的。然而,杂酚油会影响已经达到设计强度的硬化混凝土。当硬化的混凝土很可能接触到杂酚油衍生的污染,然后再次减少长期…
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The effects of hydrocarbon contamination on concrete strength
The development of brownfield sites often requires foundation concrete to be placed in contact with soils contaminated with hydrocarbons. There is a common perception that the hydrocarbons affect the setting and hardening of the concrete, giving a reduced long-term strength. There is however limited quantitative data to support this view. Laboratory testing of concrete cubes cured in various hydrocarbon compounds has been undertaken. The results indicate that hydrocarbons do reduce the long-term strength gain of concrete by up to 25%. This can be allowed for in design, thus avoiding the need for expensive sleeving or surface protection systems. Available evidence suggests that the effects of petroleum hydrocarbons on hardened concrete, which has achieved its design strength, are of limited concern. Creosote, however, can affect hardened concrete that has achieved its design strength. Where hardened concrete is likely to come into contact with creosote derived contamination then again a reduction in long-t...
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来源期刊
Geotechnical Engineering
Geotechnical Engineering ENGINEERING, GEOLOGICAL-
CiteScore
0.50
自引率
0.00%
发文量
0
期刊介绍: The objectives of the Association shall be the promotion of co-operation among geotechnical societies in SE Asia; and the assistance to member societies who have limited number of members. Now there is only one combined web titled: AGSSEA-SEAGS. SEAGS & AGSSEA encourage the submission of scholarly and practice-oriented articles to its journal. The journal is published quarterly. Both sponsors of the journal, the Southeast Asian Geotechnical Society and the Association of Geotechnical Societies in Southeast Asia, promote the ideals and goals of the International Society of Soil Mechanics and Geotechhnical Engineering in fostering communications, developing insights and enabling the advancement of the geotechnical engineering discipline.
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