No.15, June 1990

NON-DESTRUCTIVE TESTING METHOD FOR GROUTING CONDITION IN PRESTRESSED CONCRETE STRUCTURES, Manabu FUJII and Toyoaki MIYAGAWA, 22pp.

THE STATE OF RESEARCH ACTIVITIES ON RCD METHOD, Shigeaki SHIMIZU, Takeshi YAMAUCHI and Tsutomu YANAGIDA, 16pp.

OPTIMIZATION OF CABLE-STAY FORCES AND GIRDER PRESTRESS OF PRESTRESSED CONCRETE CABLE STAYED BRIDGES, Manabu FUJII, Ayaho MIYAMOTO and Yoshinori KOBUKATA, 20pp.

ANALYTICAL MODEL FOR REINFORCEMENT CONCRETE PANEL ELEMENT SUBJECTED TO REVERSED CYCLIC IN-PLANE FORCES, Junichi IZUMO, Hyunmock SHIN, Koichi MAEKAWA and Hajime OKAMURA, 22pp.

STUDY ON A METHOD FOR CONTROLLING THERMAL CRACK BY MEANS OF MODERATE PRESTRESSING, Yo ITO, Teruo SHIMIZU, Takehiko SAKAGUCHI and Yoshihiro NISHIOKA, 16pp.

OXYGEN TRANSMISSION THROUGH CONCRETE RELATED TO REINFORCEMENT CORROSION, Manabu FUJI, Kazuo KOBAYASHI, Toyoaki MIYAGAWA and Takuro MATSUMURA, 20pp.

STUDIES ON CONCRETE QUALITY CHANGE AND RELATED FACTORS BASED ON DATA ANALYSES, Toshiyasu TOYOFUKU, 26pp.

EVALUATION OF AGGREGATE PARTICLE MOTION OF LIQUID-SOLID FLOWS IN MODEL CONCRETE, Kazumasa OZAWA, Anura NANAYAKKARA and Kohichi MAEKAWA, 10pp.

FLOW AND SEGREGATION BEHAVIOR OF A TWO-PHASE MODEL CONCRETE AROUND BIFURCATING PIPELINE, Kazumasa OZAWA, Anura NANAYAKKARA and Koichi MAEKAWA, 8pp.

A STUDY ON THE CRACKS IN RC DECK SLABS OF STEEL HIGHWAY BRIDGES AND THE EFFECTIVENESS OF EXPANSiVE CONCRETE IN PREVENTING SUCH CRACKS, Toshiyasu TOYOFUKU, ,Iwao NISHIDA, Eizo FUJITA and Kokichi TERAI, 26pp.