Laserfiche WebLink
<br /> <br />THE CITY OF SUNNY ISLES BEACH <br />PROJECT NO. 21-1011 <br />BUILDING DEPARTMENT RELOCATION TO ANNEX <br /> <br />Project No. 21-1011 November 2024 031000 -15 <br />2. When requested by the ENGINEER, the CONTRACTOR shall arrange for the <br />manufacturer to furnish technical assistance in the field. <br />3. Hydrophilic Waterstop shall only be used where complete confinement by concrete <br />is provided. Hydrophilic Waterstop shall not be used in expansion or contraction <br />joints or in the first 6 inches of any non-intersecting joint. <br />4. The hydrophilic Waterstop shall be located as near as possible to the center of the <br />joint and it shall be continuous around the entire joint. The minimum distance <br />from the edge of the Waterstop to the face of the member shall be 5 inches. <br />5. Where the thickness of the concrete member to be placed on the hydrophilic <br />Waterstop is less than 12 inches, the Waterstop shall be placed in grooves formed <br />or ground into the concrete. The groove shall be at least 3/4 inch deep and 1-1/4 <br />inches wide. When placed in the groove, the minimum distance from the edge of <br />the Waterstop to the face of the member shall be 2.5 inches. <br />6. Where a hydrophilic Waterstop is used in combination with PVC Waterstop, the <br />hydrophilic Waterstop shall overlap the PVC Waterstop for a minimum of 6 inches <br />and shall be adhered to PVC Waterstop with single component water-swelling <br />sealant as recommended by manufacturer. <br />7. The hydrophilic Waterstop shall not be installed where the air temperature falls <br />outside the manufacturer's recommended range. <br />8. The concrete surface under the hydrophilic Waterstop shall be smooth and <br />uniform. The concrete shall be ground smooth if needed. Alternately, the <br />hydrophilic Waterstop shall be bonded to the surface using an epoxy grout which <br />completely fills all voids and irregularities beneath the Waterstop material. Prior <br />to installation, the concrete surface shall be wire brushed to remove any laitance <br />or other materials that may interfere with the bonding of epoxy. <br />9. The hydrophilic Waterstop shall be secured in place with concrete nails and <br />washers at 12-inch maximum spacing. This shall be in addition to the adhesive <br />recommended by the manufacturer. <br />G. Retrofit Waterstop: <br />1. Retrofit Waterstop shall be set in a bed of epoxy over a sandblasted surface with <br />stainless steel batten bars and 1/4-inch diameter stainless steel anchors at 6 inches <br />on center, staggered, and in accordance with the manufacturer's written <br />recommendations. <br />3.7 REMOVAL OF FORMS: <br />A. Careful procedures for the removal of forms shall be strictly followed, and this WORK shall <br />be done with care so as to avoid injury to the concrete or workers. In the case of roof <br />slabs and above-ground floor slabs, forms shall remain in place until test cylinders for the <br />roof concrete attain a minimum compressive strength of 75 percent of the 28-day strength <br />(0.75f'c) in SECTION 03300. No forms shall be disturbed or removed under an individual <br />panel or unit before the concrete in all the adjacent panels or units have attained 0.75f'c <br />strength and have been in place for a minimum of 7 days. The time required to establish <br />said strength shall be determined by the ENGINEER who will make several test cylinders <br />for this purpose from concrete used in the first group of roof panels placed. If the time so <br />determined is more than the 7-day minimum, then that time shall be used as the minimum