Joint Spacing in Concrete WallsThe article provides an answer to a question regarding the proper spacing between the contraction-expansion joints in cast-in-place concrete walls (h=12 feet [3.6 meters]) in a first-story of a f...
Planning the joint pattern can sometimes eliminate re-entrant corners. Get more tips for creatingcontraction joints in concrete slabs. CONTROL JOINT VS. EXPANSION JOINT Control joints are meant to control cracking, while expansion joints are meant to allow for movement. Expansion joints, orisolation ...
A contraction joint for use in forming a layer of concrete is disclosed which comprises a base, a central projection extending from the base having an upper apex section of uniform thickness and a lower triangular section having a cut-out portion to assist in the contraction and expansion of ...
jointed plain concrete pavement (JPCP);long-term pavement performance (LTPP);joint spacing;pavement distresses;optimum design 1. Introduction As one of the most frequently used construction materials, concrete is widely used in the construction and civil engineering industries. The first concrete road ...
United States Patent US2167904 Note: If you have problems viewing the PDF, please make sure you have the latest version ofAdobe Acrobat. Back to full text
It is further recommended that jointspacing be limited to a maximum of 15 feet [4.5 m].b.All panels should be square or nearly so. The lengthshould not exceed 1.5 times the width. AvoidL-shaped panels.c.For contraction joints, the joint groove should havea minimum depth of1/4the thick...
A second lath is fixed to the first and has a thickness equal to the vertical contraction of the joint. The thickness of the separation piece is equal to the joint width and it is held and guided by a caging of the differential settlement reinforcement (3) to the transverse reinforcement ...
Joints in concrete slabs can be created by forming, tooling, sawing, and placement of joint formers. Types of joints include: a. Contraction joints are intended to create weakened planes in the concrete and control the location where cracks, resulting from dimensional changes, will occur. b. ...
(38°C)temperaturerange.Toestimateexpansion, multiplylengthininchesxnumberofdegreesofanticipated temperaturedifferentialx0.0000055.Usetheresulting anticipatedmovementtodeterminecorrectthicknessofthe controljointandproperspacingforplacementofthejoint. Thinnerjoints(1/4",3/8",or1/2")(6.35mm,9.53mm,or 12.7mm)...
SEAL DEVICE INTERLOCKED JOINT FOR RESINOUS CONDUIT AND METALLIC CONDUIT and prevent contraction of the connection cylinders of the interlocked joint, which is possibly caused in the process of their molding, from adversely influe... F Shozo,藤沢 正造,H Hideo,... 被引量: 0发表: 1998年 The ...