Mortar. Mortar for use in masonry construction shall conform to ASTM C and Articles and A of TMS. /ACI /ASCE 6, except for mortars . Specifications for masonry structures: ACI /ASCE /TMS with ASTM references. Imprint: Detroit: American Concrete Institute, c 5/TMS , and its accompanying masonry specification, ACI /ASCE 6/TMS New provisions and revisions of existing standards for masonry design.
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Schedule this work so as to create a minimum of disturbance to the occupants of the affected building; and 2. Loop of reinforcing bar or wire enclosing longitudinal reinforcement.
In regions of moment where the design tensile stresses in the reinforcement are greater than 80 ercent of the allowable tmss tension stress, F[ s ], the lap length of splices shall be increased not less than 50 percent of the minimum required length.
Reinforcement provided for one requirement may be counted towards the other requirements. At each floor and roof level, continuous horizontal ties shall be provided in all load-bearing masonry walls, and around the perimeter of the building.
Specifications for Masonry Structures (ACI 530.1-92/ ASCE 6-92/TMS 602-92)
A built-up construction or combination of building units or materials of clay, shale, concrete, glass, gypsum, stone or other approved units bonded together with or without mortar or grout or other accepted method of joining.
Minimum length of end aace shall be 4 inches mm. Make such alterations of the same material as the original chimney or vent so as to maintain the same quality and appearance, except where the affected owner of the chimney or vent shall give his or her consent to do otherwise. Each continuous, vertical section of a wall, one masonry unit 5301. thickness.
Prestressed masonry shear wall. Vertical longitudinal joint between wythes of masonry or between masonry and backup construction that is permitted to be filled with mortar or grout.
Flue lining and vent systems for use in masonry chimneys with oil-fired appliances approved for use with Type L vent shall be limited to flue lining systems complying with Section Cleanout openings shall be provided within 6 inches mm of the base of each flue within every masonry chimney. Structural elements not directly in contact with the fireplace shall only be required to meet the fire resistance rating specified elsewhere in this code.
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Low- density cementitious product of calcium silicate hydrates, whose material specifications are defined 6602 ASTM C When masonry fireplaces are constructed as part of masonry or concrete walls, combustible materials shall not be in contact with the masonry or concrete walls less than mts inches mm from the inside surface of the nearest firebox lining. Details of anchorage of masonry to structural members, including the type, size and location of connectors.
Where unidentified reinforcement is approved for use, not less than three tension and three bending tests shall be made on representative specimens of the reinforcement from each shipment and grade of reinforcing steel proposed for use in the work. Cross-sectional areas of clay flue linings are as provided in Tables A masonry unit made of clay or shale, usually formed into a rectangular prism while in the plastic state and burned or fired in ascs kiln.
The compressive strength of AAC masonry shall be based on the strength of the AAC masonry unit only and the following shall be met:. For 5530.1 purpose of this code, requirements for stack bond shall apply to masonry laid in other than running bond.
Masonry composed of unsquared field stones laid without regularity of coursing but well-bonded. These joints shall be placed at each floor. Reinforcing rings shall be provided at all changes in wall thickness, at the top of the chimney, and above and below all flue 62.
Reinforcement larger than No. The placement of masonry units in a qci pattern is such that head joints in successive courses are vertically aligned. The compressive strength for each wythe shall be determined by the unit strength method or by the prism test method as specified herein. The specified dimension plus an allowance for the joints with which the units are to be laid.
» N.Y. New York City Administrative Code C21 – – MasonryLawServer
The firebox floor of a masonry heater shall be a minimum thickness of 4 inches mm of noncombustible material and be supported on a noncombustible footing and foundation in accordance with Tmw Where a spark arrestor is installed on a masonry chimney, the spark arrestor shall tmz all of the following requirements: A clearance of at least 8 inches mm shall be provided between the gas-tight capping slab of the heater and a combustible ceiling.
Concrete and masonry chimneys containing more than one passageway shall have the liners separated by a minimum 4-inchthick mm concrete or solid masonry wall. Water-resistant organic adhesives used for the installation of ceramic tile shall comply with ANSI A Required 53.1 construction 50.1. The space surrounding a chimney lining system or vent installed within a masonry chimney shall not be used to vent any other appliance.
The cross-sectional area of the passageway above the firebox, including the throat, damper and smoke chamber, shall not be less than the cross-sectional area of the flue.
Chimneys shall be designed and constructed so as to provide the necessary draft and capacity for each appliance connected to them to completely exhaust the products of combustion to the outside air. The following requirements shall be met for walls, columns and piers: