Abstract
The behavior of sealed joints in moving joint apparatuses in outdoor were investigated on polysulfide and silicone sealants. The test apparatuses were made up so as to induce similar joint movements to those in actual buildings, and the devices for measuring the joint movements and the stresses of sealants were also developed. They were exposed on the rooftop of the seven stories building in Yokohama, Japan at five positions facing to the east, south, west and north vertically, and horizontally to the zenith. The measurements were carried out for two years. The behavior of the sealed joints observed, that is, the amplitude and the rate of movements, the extent of joints at maximum and minimum width, and the stresses of sealants, are described and the effects of orientation or angles facing to, the seasons and the properties of sealants to the behavior of sealed joints are discussed.
