This paper outlines absorption and sorptivity test methods including AS 4058, RTA T362, AS 4056, ASTM C642, AS1012.21, ASTM C1585, VPV Vs other test methods. Furthermore, this paper discusses mechanisms of deterioration and gives specific recommendations.
This paper discusses three types of topping available for flat slab restoration, including bonded, un-bonded and self levelling cementitious or polymer overlay.
TN 003 Acid Sulphate Soils
This technical note was synthesized from various publicly available documents to provide a engineers outline to Acid Sulphate Soils (ASS). Defines and discusses location, recognition, acidity measurement and redox reduction.
TN 004 Hot Weather Concreting
This paper discusses hot weather concreting, what it is, what roles consultants play, strengh loss due to high concrete temperature during curing, strenth variation of different cement systems at different curing temperatures and tempurature rise during hydration. The papwer also discusses setting time, cold joints, finishing and delaminations. Furthermore, this paper discusses plastic cracking, bleed rate and pour height. Finaly, the paper discusses compressive strength development at different curing temperatures, maximum placing tempurature and batched concrete temperature.
TN 005 Concrete Free Fall
This paper discusses concrete placing operations that allow for the free fall of concrete as well as international codes.
TN 007 Attainment of Cover
This PDF outlines the issues surrounding attainment of cover and provides a specification clause for use of spacers.
TN 010 Delaminations
This technical note covers background, cause of delamination, construction factors, climate factors, concrete mix factors and floor hardeners.
TN 011 Geopolymer Background
Covered topics include background, production and materials, chemistry, physical properties, chemical resistance, reinforcement and quality control.
TN 012 Application of risk assessment for durability consultants
This paper covers defining the risk subject and level, inspection defined by risk analysis, liklihood of failure and the consequence of failure.
TN 013 Placing Concrete
Concreting, compacting concrete: theory, reasons for removing air, vibration, vibrators, internal vibrator usage, length of time required for full compaction and revibration.
TN 015 Information required for thermal analysis
This form is used to collect data for input into a thermal analysis including data required for thermal analyser.
TN 021 Sampling Frequency
Sampling, usage of mean and median, standard dev, & coef. of variation, sample size for estimate of mean, sample size for mmean differences, coefficent of variation, allowable error, signifigance of test variability, sampling, specifications and definitions.
TN 022 Early age crack control reinforcement & load induced strains
This document refers to design methods for early age crack control. Concrete grade, over thickness elements, use of ciria c 660, load induced strains, load determination and calculating the load induced strain.
TN 024 Concrete and moisture sensitive coverings
This paper discusses state of the art, construction factors, operational aspects, drying times, adhesives and tests for concrete drying.