Evaluation of an Inorganic Resin for Strengthening of Reinforced Concrete and Steel Beams

建议对最近开发的用于加固钢筋混凝土和钢梁的无机树脂进行评估。 与有机聚合物相比，新树脂具有一些主要优点，包括：（i）耐火和耐高温，（ii）耐紫外线辐射，（iii）易于处理，因为树脂是水基的，在施工或固化期间不会散发气味或毒素，以及（iv）与混凝土的化学结合更好。 对于大多数应用，可以用无机树脂代替有机聚合物。 此外，新基体的使用将增强先进复合材料在需要耐火性和长期耐用性的应用中的使用。 本研究的主要目的是：获得使用无机树脂加固钢筋混凝土和钢梁的基本信息;研究加固钢筋混凝土梁在持续荷载下的性能，以及加固钢筋混凝土梁在干湿和冻融条件下的耐久性。 将使用相当大尺寸的光束进行实验评估，以模拟实际的现场条件。 本项目是位于亨茨维尔的亚拉巴马大学和位于新泽西的罗格斯州立大学的合作项目。 H博士Toutanji将担任UAH的主要研究者，P. Balagure博士将担任罗格斯大学的主要研究者。 位于亚拉巴马亨茨维尔的美国宇航局马歇尔飞行航天中心的结构实验室将用于本提案中提出的一些工作。

It is proposed to evaluate a recently developed inorganic resin for strengthening reinforced concrete and steel beams. The new resin has some major advantages over the organic polymers; inclluding: (i) resistance to fire and high temperature, (ii) resistance to UV radition, (iii) easy handling because the resin is water based and emits no odor or toxins during construction or curing period, and (iv) better chemical bonding with concrete. It is possible to replace the organic ploymers with the inorganic resin for most applications. In addition, the use of the new matrix will enhance the use of advanced composites in applications that require fire resistance and long-term durability. The primary objectives of the proposed research is to obtain: basic information for using the inorganic resin for strengthening of reinforced concrete and steel beams; study the behavior of strengthened reinforced concrete beams under sustained loading, and durability of strengthened reinforced concrete beams under wet-dry and freeze-thaw conditions. The experimental evaluation will be conducted using fairly large size beams so as to simulate actual field conditions. This project is a cooperate effort between University of Alabama in Huntsville (UAH) and Rutgers the State University of New Jersey. Dr. H. Toutanji will be the principal investigator at UAH and Dr. P. Balagure will be the principal investigator at Rutgers. The structural Lab at NASA's Marshal Flight Space Center at Huntsville, Alabama will be used for some of the work proposed in this proposal.