摘要:
A joint assembly for controlling fractures along a fracture axis in a monolithic pour concrete structure is provided. The concrete structure is defined by a first edge form section and a generally opposed second edge form section. The joint assembly is characterized by a suspension line extending between the first edge form section and the second edge form section, and a fracture inducing sheath suspended therefrom within the concrete structure. The sheath may define an elongate slit that exposes an internal channel that the suspension line traverses. Additionally, a method for forming a control joint in a monolithic pour concrete structure via the joint assembly is provided.
摘要:
An elongated device for forming surface joints in hardenable area-covering structural material such as freshly poured concrete comprising a bottom section and a top section that are temporarily coupled together when the device is forced into the initially soft material. The top section couples to the bottom section in such a manner as to transmit sufficient downward force on the bottom section to install it in the soft material. The bottom section has means for retaining itself within the material after it has cured or hardened so that the top section can be uncoupled and stripped from the bottom section.
摘要:
The present sealing device for expansion gaps between adjacent structural members is connected to the side walls forming the gap by poured, hardening synthetic resin concrete. The sealing strip proper is anchored in lost casing means embedded at least partially in said synthetic resin concrete. The lost casing means are formed so that the sealing strip proper may act as an anchor for a removable form body or core which is used to give the poured synthetic resin concrete the shape in which it is supposed to harden. Once the resin is hardened, the form body may be removed. Preferably, the sealing strip has an M-sectional shape or an inverted V-sectional shape whereby preferably the free ends are anchored to the lost casing and the tips are anchored to the form body.
摘要:
An expansion joint assembly used between concrete slabs. A lower expansion joint strip that becomes permanently positioned between the concrete slabs and a removable topping strip that exposes a controlled depth groove above the expansion joint strip for receiving a sealant. In a modification, the upper edge of the expansion joint strip is coated with a material that will not bond or adhere to the sealant, permitting unrestricted lateral expansion and contraction of the sealant.