Marshbank Construction 5/9/2016 - Laserfiche WebLink

I I 1 rift O e I 2 3 Division 6 Structures 4I 5 6-13.GR6 6 Structural Earth Walls 7 8 CrW.13 _w 9 Materials 10 I 11 b3:2aINST1 GR6 12 Section 6-13.2 is supplemented with the following: I 13 14 b13�' `C, 3G 15 (August 3, 2015) 16 Concrete Block Faced Structural Earth Wall Materials 17 General Materials 18 Concrete Block 19 Acceptability of the blocks will be determined based on the following: I20 21 1. Visual inspection. 22 I 23 2. Compressive strength tests, conforming to Section 6-13.3(4). 24 25 3. Water absorption tests, conforming to Section 6-13.3(4). I 26 27 4. Manufacturer's Certificate of Compliance in accordance with Section 28 1-06.3. I 29 30 5. Freeze-thaw tests conducted on the lot of blocks produced for use in 31 this project, as specified in Section 6-13.3(4). I 32 33 6. Copies of results from tests conducted on the lot of blocks produced 34 for this project by the concrete block fabricator in accordance with the 35 quality control program required by the structural earth wall I 36 manufacturer. 37 38 The blocks shall be considered acceptable regardless of curing age when I 39 compressive test results indicate that the compressive strength conforms to 40 the 28-day requirements, and when all other acceptability requirements 41 specified above are met. I 42 43 Testing and inspection of dry cast concrete blocks shall conform to ASTM C 44 140, and shall include block fabrication plant approval by WSDOT prior to the I 45 start of block production for this project. 46 47 Mortar I 48 Mortar shall conform to ASTM C 270, Type S, with an integral water repellent 49 admixture as approved by the Engineer. The amount of admixture shall be as I 4155 STREET TO WMVD FREIGHT CORRIDOR IMPROVEMENTS FED AID#STPUL-9931(012); PW#3472 SP-89 February 10,2016