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Preliminary results on the ichthyocidal properties of Euphorbia ingens (Euphorbiaceae)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MathewJ Ross GertJ SteynEuphorbia ingens belongs to the family Euphorbiaceae, which includes a variety of latex-producing plants, the majority of them having ichthyocidal properties (Coates-Palgrave 2000). Tests to determine the degree of virulence of E. ingens latex used Cyprinus carpio and Xenopus laevis... -
Sybassoorte in Suid-Kaapland / SILKY BARK SPECIES IN THE SOUTHERN CAPE
Item type: Journal Article • Journal: South African Forestry Journal • Authors: C.J. Geldenhuys --- Departement van Waterwese, Bosbou en Omgewingsbewaring,The differences between the leaves and fruit of Maytenus acuminata and Cassine eucleiformis were investigated experimentally. Leaf differences alone are sufficient to distinguish between the two species having the common characteristics of silky threads in the leaves and twigs. Cassine... -
A new approach for the mix design of (patch) repair mortars
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Inès L. Tchetgnia Ngassam --- Department of Civil Engineering, South Africa Philemon Arito --- Department of Civil Engineering, South Africa Hans Beushausen --- Department of Civil Engineering, South AfricaThe failure of most repairs in concrete structures is mainly manifested in the form of cracking and/or debonding of the repair layer. These two repair mechanisms could lead to the continuous corrosion of reinforcing steel in concrete. Cracking and debonding...