U.S.-Egypt Cooperative Research: An Investigation of the Performance of Superplasticizers for Concrete Applications

美国-埃及合作研究：混凝土应用高效减水剂性能的研究

• 批准号: 9810979
• 负责人: Syed Qutubuddin
• 金额: $ 2.7万
• 依托单位: Case Western Reserve University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-09-01 至 2001-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9810979&HistoricalAwards=false
• 关键词: U.S.; Egypt; Cooperative; Research; Investigation

9810979QutubuddinDescription: This award is for support of a cooperative project by a US team including Professor Syed Qutubuddin of Case Western Reserve University in Cleveland, Ohio and Dr. Samy M. Shendy, Senior Research Scientist at Master Builders in Cleveland, Ohio, and an Egyptian team including Dr. Magdy M.H. Ayoub, of the National Research Center in Cairo, Egypt and Professor Abdelgawad M. Rabie, Dean of the faculty of Science at Ain Shams University in Cairo, Egypt. The research objective is to understand the effects of chemical structure and molecular weight of superplasticizers (polymers) on adsorption behavior, dispersability and dispersability retention of cement particles. The goal is to understand the mechanism of superplasticizer adsorption on cement surfaces. The factors that cause undesirable air entrainment with some superplasticizers will also be explored. The research will lead to the development of advanced superplasticizers with higher performance and lower cost. Scope: This award is for collaboration between two experienced groups of scientists in the US and Egypt, to study the chemistry of cement additives (polymers) that can increase its strength while making it more fluid for easier workability. Dr. Qutubuddin is an expert in colloidal and interfacial phenomena, particularly surfactant and polymer systems. Dr. Ayoub is working in the areas of coating and dispersions. Dr. Shendy will represent the industrial experience in this work, being a scientist at one of the leading organizations in construction materials. Dr. Rabie is an expert in polymer chemistry, and will be involved in the characterization and synthesis of superplasticizers. The results of their collaboration would be useful for the construction industry in Egypt and the United States. This proposal meets the INT objective of increasing US-foreign collaboration in areas that benefit both sides. This project is being supported under the US-Egypt Joint Fund Program, which provides grants to scientists and engineers in both countries to carry out these cooperative activities.

9810979 Qutubuddin描述：该奖项是为了支持一个美国团队的合作项目，该团队包括位于俄亥俄州克利夫兰的凯斯西储大学的Syed Qutubuddin教授和Samy M. Shendy，俄亥俄州克利夫兰Master Builders的高级研究科学家，以及包括Magdy M.H.博士在内的埃及团队。埃及开罗国家研究中心的Ayoub和Abdelgawad M.埃及开罗艾因夏姆斯大学理学院院长拉比说。 研究目的是了解高效减水剂（聚合物）的化学结构和分子量对水泥颗粒的吸附行为、分散性和分散性保持率的影响。 目的是了解高效减水剂在水泥表面的吸附机理。 还将探讨导致某些高效减水剂产生不良空气夹带的因素。 该研究将导致开发具有更高性能和更低成本的先进高效减水剂。适用范围：该奖项是为了表彰美国和埃及两个经验丰富的科学家团队之间的合作，研究水泥添加剂（聚合物）的化学性质，这些化学性质可以增加水泥的强度，同时使其更具流动性，更容易加工。 Qutubuddin博士是胶体和界面现象的专家，特别是表面活性剂和聚合物系统。 Ayoub博士从事涂料和乳液领域的工作。 Shendy博士将代表这项工作的工业经验，作为建筑材料领先组织之一的科学家。 Rabie博士是聚合物化学专家，将参与超增塑剂的表征和合成。 他们的合作成果将对埃及和美国的建筑业有益。 这一提议符合INT的目标，即在有利于双方的领域增加美国与外国的合作。 该项目得到了美国-埃及联合基金方案的支持，该方案向两国的科学家和工程师提供赠款，以开展这些合作活动。