Common use of Construction Joints Clause in Contracts

Construction Joints. All contraction joints shall be straight, truly vertical or level, as the cast may be, of the profile shown and formed in the exact positions shown on drawings or if not shown on the drawings, with prior approval of the Engineer. Vertical joints shall be formed against adequately secured rigid stop boards having splayed fillets, designed to pass the continuous steel reinforcement without temporary bending or displacement. The rate and method of placing concrete and the arrangement of constructions joints shall be placed in a continuous operation. Joints in reinforced slabs, joists and beams, shall be perpendicular to the axis or surface of the member jointed and at the center of the span. If an intersecting member occurs at that point, the joint shall be located at a point of minimum shear. Construction joints in columns shall be as shown on the drawings. Whenever it becomes necessary to stop work, such stops shall be located at center of slabs and of beams or as directed by the Engineer. An adequate and acceptable key for succeeding work shall be formed by using stop boards which shall be constructed tightly to prevent any grout leak. As early as possible boards shall be removed and the surface thoroughly hacked and brushed to remove all laitance. Any leakage past stop boards shall be hacked off as soon as the concrete has set. The surface shall be left clean and dry. Immediately prior to further concreting the joint face shall be soaked with water and covered with sand cement mortar of proportions identical to that in the concrete to be placed, punned into the body of the set concrete. For exposed finishes, care shall be exercised to preserve an unbroken line at the exposed edge of the joint. In no circumstances shall the concrete be allowed to finish at a break running down a rough slope. Such cases, if found, will be treated as contrary to the specification and the Contractor will be required to cut out the member and re- cast. In the case of horizontal joints, any excess water and laitance shall be removed from the surface after the concrete is deposited and before it has set. Before casting slabs the haunching or seating for the slab shall be thoroughly hacked, sourced and washed and covered with at least 5 mm of mortar immediately before the slab is cast. Any necessary construction joints in foundations shall be stepped and lapped 600 mm. Joint faces shall be prepared and treated as described, above Specification Concrete Work

Construction Joints. All contraction construction joints in retaining walls shall be provided with a keyway and a waterstop. Keyway shall be as indicated on the plans or as specified by the Engineer. The waterstop material shall be a minimum of 5” wide and of type, size and configuration approved by the Engineer. All waterstop material shall be installed in accordance with manufacturer’s instructions and special care shall be taken in jointing the material. Waterstop shall be a diaphragm type of multirib design thermo-plastic material unless otherwise specified. Concrete in structures shall be placed in such a manner that all construction joints shall be straight, truly vertical exactly horizontal or levelvertical, as the cast case may be, of the profile shown and formed in the exact positions shown on drawings or if not that they shall be straight and as inconspicuous as possible. When construction joints are definitely shown on the drawingsplans, with prior approval of the Engineer. Vertical joints shall be formed against adequately secured rigid stop boards having splayed fillets, designed to pass the continuous steel reinforcement without temporary bending or displacement. The rate and method of placing all concrete and the arrangement of constructions between consecutive joints shall be placed in a continuous operation. Joints in reinforced slabsIn order to allow for shrinkage, joists and beams, concrete shall not be placed against the second side of the construction joints for at least 12 hours after that on the first side has been placed. Weep Holes. Weep holes shall be perpendicular provided through all structures as indicated on the plans and as directed. Ends of weep holes that are to be covered by filling material shall be protected by ¼” mesh galvanized wire screen 23 gauge and not less than one (1) cubic yard of crushed stone. Pipe for weep holes shall be 4” PVC pipe SDR 35 or approved equal, and shall have a minimum pitch of 1/8” per foot. APPENDIX A MASSACHUSETTS WAGE RATES THE COMMONWEALTH OF MASSACHUSETTS EXECUTIVE OFFICE OF LABOR AND WORKFORCE DEVELOPMENT DEPARTMENT OF LABOR STANDARDS Prevailing Wage Rates XXXXXXX X. XXXXX Governor XXXXX X. XXXXXX Lt. Governor As determined by the Director under the provisions of the Massachusetts General Laws, Chapter 149, Sections 26 to 27H XXXXXXX XXXXXX Secretary XXXXXXX X XXXXXXXX Director Awarding Authority: City of Greenfield Contract Number: DPW 18-30 City/Town: GREENFIELD Description of Work: Repair of existing retaining wall by the installation of a modular block wall in front of the existing wall (app. 55 LF); repair of the existing sidewalk and concrete curb; and patching of the roadway Job Location: 000 Xxxxxxxxx Xxxxxx Information about Prevailing Wage Schedules for Awarding Authorities and Contractors • This wage schedule applies only to the axis specific project referenced at the top of this page and uniquely identified by the “Wage Request Number” on all pages of this schedule. • An Awarding Authority must request an updated wage schedule from the Department of Labor Standards (“DLS”) if it has not opened bids or surface selected a contractor within 90 days of the member jointed and at the center date of issuance of the spanwage schedule. If an intersecting member occurs at that pointFor CM AT RISK projects (bid pursuant to G.L. c.149A), the joint earlier of: (a) the execution date of the GMP Amendment, or (b) the bid for the first construction scope of work must be within 90-days of the wage schedule issuance date. • The wage schedule shall be located at a point of minimum shear. Construction joints incorporated in columns shall be as shown on the drawings. Whenever it becomes necessary to stop work, such stops shall be located at center of slabs and of beams any advertisement or as directed by the Engineer. An adequate and acceptable key call for succeeding work shall be formed by using stop boards which shall be constructed tightly to prevent any grout leak. As early as possible boards shall be removed and the surface thoroughly hacked and brushed to remove all laitance. Any leakage past stop boards shall be hacked off as soon as the concrete has set. The surface shall be left clean and dry. Immediately prior to further concreting the joint face shall be soaked with water and covered with sand cement mortar of proportions identical to that in the concrete to be placed, punned into the body of the set concrete. For exposed finishes, care shall be exercised to preserve an unbroken line at the exposed edge of the joint. In no circumstances shall the concrete be allowed to finish at a break running down a rough slope. Such cases, if found, will be treated as contrary to the specification and the Contractor will be required to cut out the member and re- cast. In the case of horizontal joints, any excess water and laitance shall be removed from the surface after the concrete is deposited and before it has set. Before casting slabs the haunching or seating bids for the slab shall be thoroughly hacked, sourced and washed and covered with at least 5 mm of mortar immediately before the slab is cast. Any necessary construction joints in foundations shall be stepped and lapped 600 mm. Joint faces shall be prepared and treated project as described, above Specification Concrete Workrequired by M.G.L. c. 149,