Self Compacting Concrete - flow, T500 time (measure of viscosity) Vicroads Test Method and passing ability 252.01 * Standard Test Method for Passing Ability of Self-consolidating Concrete ASTM C1621/C1621M-09b J-Ring * Included in the Vicroads Code of Practice RC500.16, available from: http://www.vicroads.vic.gov.au. HOLD POINTS The following is a summary of Hold Points referenced in this Part: CLAUSE HOLD POINT RESPONSE TIME REF. Submission of mix designs and procedures 2.3 2 working days VERIFICATION REQUIREMENTS AND RECORDS Test Records The Contractor must undertake the testing specified in this Clause and supply written evidence of compliance with the lot package. CLAUSE SUBJECT PROPERTY PROCEDURE FREQUENCY ACCEPTANCE LIMITS REF. 3.3-3.5 Aggregate Particle Shape As specified in At once for each As specified in AS 2758.1, Properties AS 2758.1, aggregate type Clause 8.3 (Project Clause 8.3 Assessment absorption As specified in At least once for < 2.5% only) AS 2758.1, each aggregate type Clause 7.3 3.8-3.9 Self slump flow Vicroads RC Refer Clause 5. 550-750mm spread. Aggregate Compacting 252.01 must be evenly distributed Concrete throughout the concrete paste (if not using & must not exhibit signs of RMS B80 segregation. Specification) T500 time Vicroads RC Refer Clause 5. A spread of 500 mm within 2 – (measure of 252.01 5 seconds. The final spread viscosity) must not exceed 750 mm diameter Passing Ability Vicroads RC Refer Clause 5. The concrete must not exhibit 252.01 signs of segregation. 4 & 5 Concrete Cement and Determined from Each truck load Table 4.1 Properties Water Content identification certificate (refer AS1379 Clause 1.7.3) Slump Refer AS1379 Each truck load Refer AS1379 Clause 5.2 Compressive AS1379 Refer AS1379 Refer AS1379 Strength– Production Assessment 7 day Refer AS1379 Refer Table 5.1 and Report Only Compressive Clause 5 Strength– Project Assessment
Self Compacting Concrete - flow, T500 time (measure of viscosity) and passing ability Vicroads Test Method 252.01 * Standard Test Method for Passing Ability of Self-consolidating Concrete J-Ring ASTM C1621/C1621M-09b * Included in the Vicroads Code of Practice RC500.16, available from: http://www.vicroads.vic.gov.au. HOLD POINTS The following is a summary of Hold Points referenced in this Part: CLAUSE REF. HOLD POINT RESPONSE TIME 2.3 Submission of mix designs and procedures 2 working days VERIFICATION REQUIREMENTS AND RECORDS Test Records The Contractor must undertake the testing specified in this Clause and supply written evidence of compliance with the lot package. CLAUSE REF. SUBJECT PROPERTY PROCEDURE FREQUENCY ACCEPTANCE LIMITS 3.3-3.5 Aggregate Properties (Project Assessment only) Particle Shape As specified in AS 2758.1, Clause 8.3 At once for each aggregate type As specified in AS 2758.1, Clause 8.3 absorption As specified in AS 2758.1, Clause 7.3 At least once for each aggregate type < 2.5% 3.8-3.9 Self Compacting Concrete (if not using RMS B80 Specification) slump flow Vicroads RC 252.01 Refer Clause 5. 550-750mm spread. Aggregate must be evenly distributed throughout the concrete paste & must not exhibit signs of segregation. T500 time (measure of viscosity) Vicroads RC 252.01 Refer Clause 5. A spread of 500 mm within 2 – 5 seconds. The final spread must not exceed 750 mm diameter Passing Ability Vicroads RC 252.01 Refer Clause 5. The concrete must not exhibit signs of segregation. 4 & 5 Concrete Properties Cement and Water Content Determined from identification certificate (refer AS1379 Clause 1.7.3) Each truck load Table 4.1 Slump Refer AS1379 Each truck load Refer AS1379 Clause 5.2 Compressive Strength– Production Assessment AS1379 Refer AS1379 Refer AS1379 7 day Compressive Strength– Project Assessment Refer AS1379 Refer Table 5.1 and Clause 5 Report Only
Part_CC05,CC10,CC20,CC25_Concrete_JAN_2014.docx