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Rapid field test for carbonation of lime or cement treated materials

Author: Netterberg, F Date: Apr 1984 A rapid field test for carbonation of lime, lime-slag, lime-pfa, cement, cement-pfa or cement-slag stabilized pavement material is described. The treated material is simply sprayed with phenolphthalein, phenol red and dilute hydrochloric acid ... Read more
Calcrete in road construction - Bulletin

Author: Netterberg, F Date: Sep 1971 The composition, distribution, origin, and age of South African calcretes are briefly reviewed and a simple classification suitable for engineering use described. Methods of searching for economic calcrete deposits and of testing calcretes ... Read more
Calcrete in road construction- first draft

Author: Netterberg, F Date: Jan 1969 The composition, distribution, origin and age of South African calcrete are briefly reviewed and a simple classification suitable for engineering use described. Methods of searching for economic calcrete deposits and of testing calcretes for ... Read more
From Mohair fleece to fabric: An account of SAWTRI's research

Author: Veldsman, DP Date: Feb 1968 SAWTRI hopes that, through this resume, and through its complete list of publications where more detail is required, a contribution is being made to the knowledge of one of nature's most powerful wonderful fibers. Read more
Effect of various shrink resist treatments on fabrics knitted from repco wrapped core spun wool yarns

Author: Shorthouse, CA ; Robinson, GA Date: Jun 1987 Repco wrapped core-spun (RWCS) and Repco wrapped spun (RWS) wool yarns, having textured nylon or polyester as the filament component were spun to a range of yarn linear densities from three lots of tops (1) polymer treated tops pretreated by ... Read more
Self-twist wool yarns containing textured multifilament yarns in double jersey fabrics

Author: Shorthouse, CM ; Robinson, GA Date: Mar 1987 Repco wrapped core-spun (RWCS) and Repco wrapped spun (RWS) wool yarns, having textured nylon or polyester as the filament component, were spun to limiting counts and then knitted into medium and fine gauge double jersey fabrics (Pun to-di-Roma ... Read more
A review of the physical properties of textured polyester yarns and fabrics and their relationship

Author: Cawood, MP Date: 1978 Textured yarns, especially polyester, play an important role in the synthetic and natural yarn market. In the apparel sector the false twist textured yarns have maintained the dominant position. Read more
SAWTRI Bulletin 1981 Vol 15 issue 1

Author: De Oliver, P Date: Mar 1981 SAWTRI update: The effect of staple crimp, mean fibre diameter and resistance to compression on the bundle tensile properties of a wide range of unrelaxed and wetrelaxed wool tops has been investigated. It was found that the tensile properties ... Read more
SAWTRI Bulletin 1982 Vol 16 issue 4

Author: Turpie, DWF ; De Olivier, W ; Hunter, L ; Van Rensburg, JJ ; Strydom, MA Date: Dec 1982 A major building extension programme and the installation of new equipment were completed during the year. The extensions to the buildings have ·provided the Institute with much needed additional floor space for some of the existing departments ... Read more
SAWTRI Bulletin 1974 Vol 8 issue 1

Author: De W. Olivier, P Date: Mar 1974 SAWTRI bulletin editorial news. This issue also elaborates on the following: 1. The simultaneous and continuous dyeing and shrinkproofing of all wool fabric or top sliver by means of polyacrylate Hercosett resin and reactive dyes. 2. Some ... Read more
SAWTRI Bulletin 1971 Vol 5 issue 1

Author: Hunter, IM ; Weideman, E ; Wevers, HW ; Veldsman, DP Date: Mar 1971 The decision to convert SAWTRI to a National institute is an expression of confidence in the future of the research. The bulletin also contains the following: 1. A study of the variation in doubling twist of wool worsted hosiery yarns. 2. The ... Read more
SAWTRI Bulletin 1987 Vol 21 issue 4

Author: SAWTRI Date: Dec 1987 Seam slippage in woven woolen fabrics for leisure wear was investigated. The results obtained showed that a change in the stitch length or sewing thread type did not have a significant effect on the magnitude of seam slippage. However, the ... Read more
Training and capacity building on the Coastal Climate Change Tool

Author: Lück-Vogel, Melanie Date: Oct 2023 This presentation was the baseline for about 20 training workshops to government official on coastal climate change, coastal flood and erosion risk lines and coastal management lines. These workshops were conducted between 2020 and 2023 on ... Read more
The design and physical properties of co-we-nit men's outerwear fabrics

Author: Layton, L ; Ellis, R ; Robinson, GA Date: May 1972 A new concept in designing colour-and-co-we-nit effects is described and illustrated with samples. Read more
The correlations between different measures of weak places in worsted yarns and weaving performance

Author: Hunter, L ; Cizek, J ; Turpie, DWF Date: 1987 An analysis has been undertaken of the inter-correlation between various measures of weak places in yarns and their role in determining weavability. Read more
The correlation between two different sewability tests and the effect of certain wool fibre and fabric properties on the sewability of woven fabrics

Author: Hunter, L ; Cawood, MP Date: Dec 1983 The current report deals with a study undertaken to investigate fabric sewability aspects. Read more
The correlation between staple strength and single fibre strength for sound and tender wools

Author: Hunter, L ; Leeuwner, W ; Smuts, S ; Strydom, MA Date: Apr 1983 A good correlation was found between staple tenacity and single fibre tenacity for sound and tender wools. Read more
The correlation between cotton fibre properties and ring and rotor yarn properties

Author: Hunter, L ; Gee, E Date: Apr 1982 This paper reports on some findings of a study started at the SAWTRI some five years ago ago, and which was aimed at determining the effect of fibre properties and in particular, air-flow determined fineness and maturity, on the properties ... Read more
Recovery of magnetite from dilute suspensions in a pilot plant separator description of the magnetic field progress report no 3

Author: Bonapace, AC ; du Toit, P Date: 1975 Some physical expressions relating the parameters of the magnetic field have been derived. A description of the magnetic field was carried out by measuring the magnetic flux intensity at various points along the drum circumference and at ... Read more
Report no. 3 of 1976 the grain-size distribution of the mineral matter in a sample of -0.5 mm + 200 = Landau coal

Author: Gaigher, JL Date: 1976 This report discusses an investigation of radio frequency ashing, micro-sieving in an ultrasonic bath and X-ray diffraction analysis, it is possible to determine the grain-size distribution of the mineral matter in a coal sample. Read more