Absorption testing
| 12/1/2002 | ACCI REF. NO.: 58324 | |
| University of New South Wales: Australian Centre for Construction Innovation | ||
| Properties of Type GP Cement Concrete Modified with Penetron Admix | ||
| Testing Water Absorption and AVPV (AS 1012.21) and Water Sorptivity (RTA Test Method T362) | ||
| Results: See Table 4.4-1 The concrete Mix-P containing Penetron Admix had both slightly lower water absorption and AVPV values than the control concrete Mix-C. See TAB Water Sorptivity (RTA Test Method T362) has been used by RTA (NSW) as an assessment test for quality assurance in the RTA QA Specification B80 for Concrete Works for Bridges. The test results clearly shown that the use of Penetron Admix in Concrete Mix-P resulted in a reduction of the water penetration depth to 60% of that of the control concrete Mix-C. Also, the water penetration depths of both concretes are much less than the maximum permitted depth of 25 mm for the exposure classification B1 and 35 mm for the exposure classification A required in the RTA (NS) QA Specification B80. | ||
| Test Item | ||
| Water Absorption | ||
| Apparent Volume of Permeable Voids | ||
| Test Item | ||
| Water Sorptivity Penetration Depth (RTA-T362) | ||
| 12/1/2003 | ACCI REF. NO.: J#61707 | |
| The University of New South Wales: The Australian Centre for Construction Innovation | ||
| Testing Properties of a commercial Concrete Mix Modified with Penetron Admix | ||
| Results: The water absorption and the apparent volume of permeable voids (AVPV) in hardened concrete were tested according to AS 1012.21. According to the acceptance criteria of VICROADS based on AVPV for concrete in various exposure classifications, the acceptable AVPV value for exposure classification B1 and B2 is less or equal to 15% and 14% respectively. Penetron Admix modified concrete satisfied both criteria. Exposure classification B2 is a described in AS3600 as such “permanently submerged in sea water” and the classification B1 includes several exposure environments less aggressive than B2. | ||
| Water Absorption | ||
| Apparent Volume of Permeable Voids | ||
