US-Egypt Cooperative Research: Use of Aluminum Slag in Aerated Building Products

该奖项是为了支持宾夕法尼亚州立大学材料研究实验室的R.I. Malek博士和埃及亚历山大大学研究生研究所的Mohammed a . El Gamal博士的合作项目。两位研究人员计划开展以下研究：1)探索并提供有关铝工业废料磨碎铝渣在加气建筑产品中的应用的可靠科学知识；2)研究新产品的基本反应过程、微观结构演变和性能。高压灭菌加气胶凝材料（AAC）由胶凝混合物制成，其中产生气体或引入空气，以便当混合物凝固时，产生均匀的细胞结构。铝粉是最常用的煤气发生材料。它与水泥水化过程中产生的石灰反应产生氢气。铝渣将提供曝气所需的铝，而其他成分（氧化铝和氮化铝）将增加最终产品的热惯性。AAC具有独特的性能，因为它的密度小于或等于水的密度，可以提供更好的隔热效果。范围：该奖项将允许具有互补能力和经验的埃及和美国科学家之间的合作。计划中的研究将支持宾夕法尼亚州立大学的研究计划，包括PI目前的研究，以扩大有关AAC形成的反应机制的科学知识，并最大限度地利用工业副产品和废物。AAC建筑产品特别适用于热带气候带的炎热干旱地区，如埃及，以及地震带，如美国西南部。来自埃及和美国的研究生将各有一名参加这项研究。该提案符合INT在互利领域增加美国与外国合作的目标。

9819858MalekDescription: This award is for support of a cooperative project by Dr. R.I. Malek, Materials Research Laboratory at Pennsylvania State University, University Park, PA and Dr. Mohammed A. El Gamal, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt. The two investigators plan to conduct research to 1) explore and provide sound scientific knowledge on the use of ground aluminum slag, a waste product in the aluminum industry, in aerated building products, and 2) investigate the fundamental reaction process, microstructural evolution and properties of the new products. The autoclaved aerated cementitious materials (AAC) are made of cementitious mixture into which gas is produced or air is introduced so that when the mixture sets, a uniform cellular structure results. Aluminum powder is the most commonly used gas generating material. It reacts with lime produced during cement hydration to produce hydrogen gas. The aluminum slag will provide the aluminum needed for aeration, and other constituents (alumina and aluminum nitride) will increase the thermal inertia of the final products. The AAC has unique properties, as its density is less than or equal to that of water and can provide a better thermal insulation. Scope: This award will allow collaboration between Egyptian and US scientists who have complementary capabilities and experience. The planned research will support the Penn State research initiative, including the PI's current research, to expand scientific knowledge on the reaction mechanisms involved in the formation of AAC as well as maximizing the use of industrial by-products and waste. The AAC building products are of particular interest to the hot-arid zone of the tropical climate belt such as Egypt as well as seismic areas such as the southwest of the United States. One graduate student each from Egypt and from the United States will participate in this research. This proposal meets the INT objective of increasing US-foreign collaboration in areas of mutual benefit.