Types of Concrete Joints and Their Purpose - Concrete Network
2020年6月22日 · Information on creating and placing joints in a concrete slab. Covers the main three types of concrete joints as well as tips for placing joints on decorative concrete surfaces.
Control Joints in Concrete - When To Cut & Spacing - Concrete …
2021年7月1日 · Expansion joints, or isolation joints, are used between two different concrete pours, or where concrete meets with another material or even a structure. Expansion joints are more common on big commercial projects and often …
Construction Joints in Concrete Slabs - Concrete Network
Info on construction joints for concrete slabs. Includes when this type of concrete joint should be used and how construction joints should be created.
Contraction Joints in Concrete Slabs - Concrete Network
Contraction joints are formed by saw cutting, by tooling a joint with a grooving tool, or by inserting a plastic strip into the concrete during finishing (zip-strip). Proper timing and depth of cut are essential.
Sealing Joints in a Concrete Slab - Concrete Network
Read about sealing joints in a concrete slab. Covers types of joint sealers and fillers as well as how to seal concrete joints.
Concrete Groovers & Jointers for Making Control Joints - Concrete …
Tips for using concrete groovers for creating joints in freshly poured concrete. Find out what types of jointers are available and what you'll pay.
Isolation Joints - Concrete Network
Information on isolation joints in concrete slabs, what they are used for and how they can help avoid cracks in concrete.
Why Does Concrete Crack? How to Stop Cracking - Concrete …
2020年4月22日 · Information on how to prevent concrete from cracking provided by the Concrete Network. This includes major reasons cracking occurs, including excess water in the mix, rapid drying of the concrete, improper strength, and lack of control joints
How to Build Poured Walls - Concrete Network
2020年6月26日 · Contraction Joints: These are vertical joints or grooves formed or cut into the wall that allows the concrete to shrink without noticeable harm. Contraction joints are usually about 0.25 inches wide and about 1/2 to 3/4 inch deep, and are provided at intervals of not exceeding 30 feet.
Concrete Efflorescence - Causes, Removal & Prevention - Concrete …
2020年10月23日 · Efflorescence is a white powder seen on the surface of concrete, caused by vapor migrating through the slab, bringing salts to the surface.