US-Egypt Cooperative Research: Development of New Mortars for Repair and Preservation of Historical Structures

美埃合作研究：开发用于修复和保护历史建筑的新型迫击炮

• 批准号: 0210936
• 负责人: Raafat Malek
• 金额: $ 2.36万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-01 至 2006-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0210936&HistoricalAwards=false
• 关键词: US; Egypt; Cooperative; Research; Development

0210936MalekDescription:This award is for support of a joint research project by Dr. R. I. Malek, Materials Research Laboratory, Pennsylvania State University (PSU), University Park, Pennsylvania and Dr. Gamal Kamh, Geology Department, Menoufia University, Shebeen El-Kom, Egypt. The objective of this research is to provide database on compositions of new restoration mortars and preservation procedure for old structures. The two scientists plan to investigate deterioration mechanisms. They will determine the compositions of new mortars that are relevant to the causes of deterioration and that are compatible with host structures as well as the use of new binders. They will diagnose the causes of damage using chemical analysis, ultrasonic spectroscopy, x-ray and Magic Angle Spinning NMR, color hue, porosity, and elasticity moduli at PSU. They will try several new binders including cement grout, geopolymers, cement/organic polymer blends, and phosphate-based binders. They will perform characterization of the binders to ensure their longevity and compatibility with the host structure. They will include geopolymers, which have an advantage as repair material in trapping salts due to the difference in charge between Aluminum and Silicates in the framework. They will test phosphate binders, which have the advantage of trapping salts and being color adjustable and are dimensionally stable. Scope: The two collaborating investigators have complementary research background experiences. Dr. Malek has considerable experience in cementitious materials and their degradation and repair. Dr. Kamh has experience in modes of deterioration of historic buildings under natural weathering conditions and due to human activity causes. They will combine their experiences and using the laboratory resources at PSU for the study of the practical aspects of restoration and preservation of ancient buildings and monuments. The two will exchange visits PI will visit, first to Egypt for the field study and then to PSU for the laboratory analysis. Graduate students at both institutes will be involved in the field and laboratory research. The experience these students gain in the restoration and preservation science may help them further their career goals. Relevant educational materials will be prepared and used as a seed for a new curriculum on science and technology of restoration and preservation to further students' education. This project is funded by the Office of International Science and Engineering and the Division of Civil and Mechanical Systems.

0210936Malek 描述：该奖项旨在支持宾夕法尼亚州立大学 (PSU) 材料研究实验室 (PSU) 材料研究实验室 R. I. Malek 博士和埃及 Shebeen El-Kom 梅努菲亚大学地质系 Gamal Kamh 博士的联合研究项目。 本研究的目的是提供有关新型修复砂浆成分和旧结构保存程序的数据库。 两位科学家计划研究恶化机制。 他们将确定与劣化原因相关、与主体结构相容的新砂浆的成分以及新粘合剂的使用。他们将利用 PSU 的化学分析、超声波光谱、X 射线和魔角旋转 NMR、色调、孔隙率和弹性模量来诊断损坏原因。 他们将尝试几种新的粘合剂，包括水泥浆、地质聚合物、水泥/有机聚合物混合物和磷酸盐基粘合剂。他们将对粘合剂进行表征，以确保其使用寿命以及与主体结构的兼容性。 它们将包括地质聚合物，由于框架中铝和硅酸盐之间的电荷差异，地质聚合物在捕获盐方面具有作为修复材料的优势。 他们将测试磷酸盐粘合剂，这种粘合剂具有捕获盐、颜色可调且尺寸稳定的优点。 范围：两位合作研究人员具有互补的研究背景经验。 Malek 博士在水泥材料及其降解和修复方面拥有丰富的经验。 Kamh 博士在自然风化条件下和人类活动导致的历史建筑恶化模式方面拥有丰富的经验。 他们将结合自己的经验并利用PSU的实验室资源来研究古建筑和古迹修复和保护的实际问题。两人将互访 PI将访问，首先前往埃及进行实地考察，然后前往PSU进行实验室分析。 两个学院的研究生都将参与现场和实验室研究。 这些学生在修复和保存科学方面获得的经验可能有助于他们进一步实现职业目标。将准备相关教材，作为修复与保存科学技术新课程的种子，以进一步教育学生。 该项目由国际科学与工程办公室和土木与机械系统部资助。