The supply and placement of all N Class concrete shall be in accordance N Class with SPECIFICATION 901 CONCRETE GENERAL WORKS. Concrete – The supply and placement of all S Class concrete shall be in accordance S with SPECIFICATION 820 CONCRETE FOR STRUCTURES. Concrete 404.10 CEMENT STABILISED BACKFILL Cement stabilised backfill material shall consist of basecourse material, or Mix other suitable material approved by the Superintendent, stabilised in the Proportions proportion of 100kg of Type GP Cement to one cubic metre of uncompacted backfill material. Water for cement stabilisation shall be clean and potable. Water 404.11 SELECT BEDDING MATERIAL Select bedding material be basecourse material, or other suitable material approved by the Superintendent, containing less than 20% by mass of material retained on the 37.5mm sieve as determined by MRWA Test Method WA 115.2. 404.12 JOINT SEALANT Acceptable joint sealant for masking external joints are Flash Tac Scotch Wrap No.50 and Rock Wrap 3000 or a suitable equivalent approved by the Superintendent. 404.13 404.30 NOT USED – INSTALLATION 404.31 GENERAL The installation of pipes and box culverts shall include all trench excavations, construction and backfill to the details shown on the Drawings and as described in this SPECIFICATION. 404.32 TRENCH EXCAVATION Trenches shall be excavated to the width shown in the Drawings with vertical sides throughout where the excavation is up to 1.5m deep. the excavation is greater than 1.5m deep, the trench shall be Trench > 1.5m excavated in accordance with the requirements of the Drawings. Any loose Deep or disturbed material shall be removed from the walls of the trench. Spoil Material All spoil material from excavations, including excavations for end treatments and rock protection, shall be disposed of as specified in SPECIFICATION 302 EARTHWORKS.
The supply and placement of all N Class concrete shall be in accordance with SPECIFICATION 901 CONCRETE – GENERAL WORKS. N Class Concrete The supply and placement of all S Class concrete shall be in accordance with SPECIFICATION 820 CONCRETE FOR STRUCTURES. S Concrete 404.10 CEMENT STABILISED BACKFILL Cement stabilised backfill material shall consist of basecourse material, or other suitable material approved by the Superintendent, stabilised in the proportion of 100kg of Type GP Cement to one cubic metre of uncompacted backfill material. Mix Proportions Water for cement stabilisation shall be clean and potable. Water 404.11 SELECT BEDDING MATERIAL Select bedding material be basecourse material, or other suitable material approved by the Superintendent, containing less than 20% by mass of material retained on the 37.5mm sieve as determined by MRWA Test Method WA 115.2. 404.12 JOINT SEALANT Acceptable joint sealant for masking external joints are Flash Tac Scotch Wrap No.50 and Rock Wrap 3000 or a suitable equivalent approved by the Superintendent. 404.13 – 404.30 NOT USED INSTALLATION 404.31 GENERAL The installation of pipes and box culverts shall include all trench excavations, construction and backfill to the details shown on the Drawings and as described in this SPECIFICATION. 404.32 TRENCH EXCAVATION Trenches shall be excavated to the width shown in the Drawings with vertical sides throughout where the excavation is up to 1.5m deep. the excavation is greater than 1.5m deep, the trench shall be excavated in accordance with the requirements of the Drawings. Any loose or disturbed material shall be removed from the walls of the trench. Trench > 1.5m Deep All spoil material from excavations, including excavations for end treatments and rock protection, shall be disposed of as specified in SPECIFICATION 302 EARTHWORKS. Spoil Material
Specification%20404%20Culverts%2019%20April%202017.RCN-D17^23309198.DOCX