CHARACTERISTICS FOR STRENGTH OF CONSTRUCTION JOINT USING POLYMER-MODIFIED MORTAR AS JOINT MATERIALS

Abstract

RC structures certainly have construction joints because of their structural and executional reasons. Construction joint works are done at reinforcement or extension of reinforced concrete structures such as heap up of sea wall, lane width expansion of RC bridge and so on. Generally, cement paste, cement mortar or epoxy resin is used as a joint material. Polymer-modified mortars are promising materials as joint materials. In this paper, chracteristics for strength of construction joint are investigated concerning to flexural strength of concrete beams which have a vertical or horizontal joint.