901.07 CLASS OF CONCRETE The Class of concrete shall be Normal-class as specified on the Drawings. Normal Class Concrete Unless otherwise noted slump and aggregate size is as follows: Maximum aggregate size 20mm Aggregate Size Maximum slump 100mm Slump Specifying Supply Parameters for Normal-class Concrete. Normal-class Concrete Supply concrete shall be specified in accordance with AS 1379 including all of the following: Standard strength grade to be designated as one of N20, N25, N32, Strength N40 or N50; The slump at point of acceptance; Intended method of placement; The maximum nominal size of aggregate and Project assessment to provide additional test data if required by the supplier. 901.08 901.25 NOT USED – OPERATIONS 901.26 GENERAL Requirements for falsework shall be in accordance with Specification 819 Falsework FALSEWORK. Requirements for formwork shall be in accordance with Specification 821 Formwork FORMWORK. Requirements for steel reinforcement shall be in accordance with Reinforcement Specification 822 STEEL REINFORCEMENT. 901.27 MIXING OF CONCRETE Production and delivery for the concrete shall be in accordance with the Batch Plant & requirements of AS 1379 except that additional water shall not be introduced Transit Mixers into a mixed batch of concrete and the period for completion of discharge from the commencement of mixing shall not exceed 90 minutes. 901.28 PLACING OF CONCRETE Prior to the placement of any concrete, the Contractor must certify to HOLD the Superintendent that all falsework, formwork, reinforcement, levels, placement procedures and curing procedures to be employed comply with the requirements of the Technical Specification.
901.07 CLASS OF CONCRETE The Class of concrete shall be Normal-class as specified on the Drawings. Normal Class Concrete Unless otherwise noted slump and aggregate size is as follows: Maximum aggregate size 20mm Aggregate Size Maximum slump 100mm Slump Specifying Supply Parameters for Normal-class Concrete. Normal-class concrete shall be specified in accordance with AS 1379 including all of the following: Concrete Supply Standard strength grade to be designated as one of N20, N25, N32, N40 or N50; Strength The slump at point of acceptance; Intended method of placement; The maximum nominal size of aggregate and Project assessment to provide additional test data if required by the supplier. 901.08 – 901.25 NOT USED OPERATIONS 901.26 GENERAL Requirements for falsework shall be in accordance with Specification 819 FALSEWORK. Falsework Requirements for formwork shall be in accordance with Specification 821 FORMWORK. Formwork Requirements for steel reinforcement shall be in accordance with Specification 822 STEEL REINFORCEMENT. Reinforcement 901.27 MIXING OF CONCRETE Production and delivery for the concrete shall be in accordance with the requirements of AS 1379 except that additional water shall not be introduced into a mixed batch of concrete and the period for completion of discharge from the commencement of mixing shall not exceed 90 minutes. Batch Plant & Transit Mixers 901.28 PLACING OF CONCRETE Prior to the placement of any concrete, the Contractor must certify to the Superintendent that all falsework, formwork, reinforcement, levels, placement procedures and curing procedures to be employed comply with the requirements of the Technical Specification. HOLD
Specification%20901%20Concrete%20General%20Works%20%2015%20June%202018.RCN-D18^23517492.DOCX