KLB Construction Inc 11/20/2018 - Laserfiche WebLink

I 1 The last sentence of the second paragraph (after the preceding Amendment is applied) is 2. revised to read: 3 4 In no case shall the depth of a sawn vertical cut exceed 3/4 inch or to the top of the top 5 steel reinforcing bars, whichever is less. 6 7 The first sentence of the third to last paragraph is revised to read: 8 9 Where existing steel reinforcing bars inside deck repair areas show deterioration greater 10 than 20-percent section loss, the Contractor shall furnish and place steel reinforcing 11 bars alongside the deteriorated bars in accordance with the details shown in the 12 Standard Plans. 13 14 The last paragraph is deleted. 15 16 6-09.3(7) Surface Preparation for Concrete Overlay 111 17 The first seven paragraphs are deleted and replaced with the following: 18 19 Following the completion of any required further deck preparation the entire lane or strip 20 being overlaid shall be cleaned to be free from oil and grease, rust and other foreign 21 material that may still be present. These materials shall be removed by detergent- 22 cleaning or other method accepted by the Engineer followed by sandblasting. 23 24 After detergent cleaning and sandblasting is completed, the entire lane or strip being 25 overlaid shall be swept clean in final preparation for placing concrete using either 26 compressed air or vacuum machines. 27 28 Hand tool chipping, sandblasting and cleaning in areas adjacent to a lane or strip being 29 cleaned in final preparation for placing concrete shall be discontinued when final 30 preparation is begun. Scarifying and hand tool chipping shall remain suspended until 31 the concrete has been placed and the requirement for curing time has been satisfied. I 32 Sandblasting and cleaning shall remain suspended for the first 24 hours of curing time 33 after the completion of concrete placing. 34 35 Scarification, and removal of the upper layer of concrete overlay when present, may 36 proceed during the final cleaning and overlay placement phases of the Work on 37 adjacent portions of the Structure so long as the scarification and concrete overlay 38 removal operations are confined to areas which are a minimum of 100 feet away from 39 the defined limits of the final cleaning or overlay placement in progress. If the 40 scarification and concrete overlay removal impedes or interferes in any way with the 41 final cleaning or overlay placement as determined by the Engineer, the scarification and 42 concrete overlay removal Work shall be terminated immediately and the scarification 43 and concrete overlay removal equipment removed sufficiently away from the area being 44 prepared or overlaid to eliminate the conflict. If the grade is such that water and 45 contaminants from the scarification and concrete overlay removal operation will flow into 46 the area being prepared or overlaid, the scarification and concrete overlay removal 47 operation shall be terminated and shall remain suspended for the first 24 hours of curing 48 time after the completion of concrete placement. 49 50 6-09.3(12) Finishing Concrete Overlay 51 The third paragraph is deleted. 52 WEST MARINE VIEW DRIVE UTILITIES PAGE 23 OF 60 August 2018 WORK ORDER#3588 WSDOT AMENDMENTS Rev 4/2/18