Joint filler strips are used to make expansion joints, control joints and construction joints in concrete to create gaps that allow the concrete to move freely or crack in a controlled manner. As

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ACI 302.1R recommends joint filling be deferred as long as possible in concrete floors. Use of polyurea joint fillers may allow joint filling to proceed earlier; verify minimum time period with manufacturer. Typically, up to 30 percent of concrete shrinkage takes place

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Control Joints are not intended to stop cracking but rather control cracking. It is best to cut joints as early as possible either while finishing with a concrete groover or within 6-18 hours after finishing with a concrete saw. Plan out your control joint spacing 24-36 times the depth of your concrete

May 20,  · Polyurea joint filler products for concrete control joints have received attention for filling concrete control joints and is increasingly used in that application since this material is resistant to moisture, has high adhesion properties when used with concrete, and will cure in very cold weather.

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ElastiPoxy Joint & Crack Filler Kit is a commercial-grade, low viscosity, self-leveling, 100% solids, hybrid, two-component flexible epoxy. Used for strong lasting repair and filling of contraction control joints, saw cuts, spalling, mortar joints, and large stress cracks in poured concrete and concrete blocks.

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EXPANSION JOINT FILLING CONTRACTOR. CDRI uses only high quality concrete expansion joint filler and sealants to properly restore the original integrity and structural function of multi-family residential, commercial and industrial properties We offer innovative repair solutions for the following concrete

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Home » Blog » The Purpose of Control Joint Cuts. Cobra Concrete Cutting Services Co. has over 15 years of experience cutting concrete in the Chicagoland area for a variety of large commercial projects. While primarily focusing on serving the Tri-State area, Cobra Concrete is available for service in other states based on requirements.

C. Dowel Joints: Install dowelled joints in expansion joints for exterior slabs and sidewalks. Use dowel sleeves or lubricate one-half of dowel length to prevent concrete bonding to one side of joint. 3.7 Concrete Placement A. Before placing concrete, owner to be notified a minimum of 24 hours in advance of any concrete placement. B.

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Nov 02,  · One of the first places to start is knowing how much space you need between your cuts. While experience will help you get a better idea of what works for your concrete and climate, there is a rule of thumb to start with. Cuts should be approx. 2-3 times the thickness of your slab in feet. For example, a 6” slab would have cuts 12’ – 18

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Repairing & Sealing Horizontal & Vertical Expansion Joints. Expansion joints are cuts in concrete slabs, or the joints between walls and concrete slabs, that go completely through the slab to the base material. The purpose of an expansion joint is to allow the concrete slab to expand and contract with temperatures changes, without cracking the

Unplanned construction joints These are joints that are forced upon the concrete-placing crew because of an interruption in supply of a duration long enough for the concrete to take its initial set. There is no opportunity to plan their location. Principles to follow can be only indicated. As with planned joints, the concrete should be cut back to

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CONCRETE SECTION 1901 GENERAL 1901.1 Scope. The provisions of this chapter shall govern the materials, quality control, design and construction of concrete used in structures. Exception: Buildings and structures located within the high-velocity hurricane zone shall comply with the provi-sions of Sections 1917 and 1919 through 1929.

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