2 Concrete Floor Section

Work included in this section.

2 concrete floor section.

See section r402 2 for maximum cementitious materials content. The american concrete institute. Founded in 1904 and headquartered in farmington hills michigan usa the american concrete institute is a leading authority and resource worldwide for the development dissemination and adoption of its consensus based standards technical resources educational programs and proven expertise for individuals and organizations involved in concrete design. Now fill the hole completely leaving some material mounded on top.

722 2 2 concrete floor and roof slabs. All cast in place concrete including bases for mechanical and electrical. Properties of the surface are determined by the. While the bonding agent is still tacky mix the concrete with water and scoop some into the hole.

Guide for concrete floor and slab construction aci 302 1r 04 foreword the quality of a concrete floor or slab is highly dependent on achieving a hard and durable surface that is flat relatively free of cracks and at the proper grade and elevation. Page 2 section 03300 cast in place concrete part 1 general 1 01 description provide cast in place concrete work complete as indicated specified and required including all appurtenant work as indicated. Deflection calculations it is backed by site based research. Press it into the corners and against the edges with a trowel.

Concrete floor and roof slabs. Deflections in concrete slabs and beams 2005 or how to design concrete structures using eurocode 2. The key to success was. A frequent reason behind a darkened concrete appearance is the addition of calcium chloride to accelerate the setting time of concrete see photo 1 especially when calcium chloride dosages approach 2 by weight of cement.

1 cleaning the existing surface to ensure good adhesion 2 installing adequate steel reinforcement to the slab 3 wetting the existing concrete surface before pouring and 4 wetting the new concrete periodically after it sets so the concrete cures to the highest strength possible. The concrete society publication. Reinforced and prestressed floors and roofs shall comply with section 721 2 2 1. Brush on a concrete bonding liquid sold in bottles at home centers.

Inadequate mixing after addition of calcium chloride makes the concrete color even more irregular or blotchy. For garage floors with a steel troweled finish reduction of the total air content percent by volume of concrete to not less than 3 percent is permitted if the specified compressive strength of the concrete is increased to not less than 4 000 psi. This rigorous method is described in greater detail elsewhere e g.