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Effect of plasticizers, superplasticizers and silica fly ash on concrete water-resistance

Ahmad M.

Challenges of Modern Technology

2016

Vol. 7, no. 3

33--38

Concrete is one of the basic construction materials. It is a composite made of cement, water, coarse and fine aggregate. In the past, concrete was produced only with primary components, and it was often of poor quality. Nowadays, technological progress and scientific research allowed the concrete to be made with the use of chemical admixtures and mineral additives to modify and improve selected properties of both the concrete mixture and hardened concrete. Contrary to popular belief, obtaining concrete with suitable properties is not simple and the choice of mixture components requires professional knowledge. The care and quality is also extremely important. The paper presents the results of laboratory research concerning the impact of the plasticizer admixture—Betocrete-C17 and superplasticizer—Arpoment-O and mineral additive of silica fly ash on concrete water resistance. Capillarity, water permeability and water absorption of the concrete were determined. Additionally, a study of the consistency of fresh mixture was done and the hardened concrete compressive strength was tested.

Wpływ dodatków chemicznych na właściwości fizyczne oleju rzepakowego

Pilarski K., Krysztofiak A.

Journal of Research and Applications in Agricultural Engineering

2009

Vol. 54, nr 1

23-26

W pracy przedstawiono wyniki badań laboratoryjnych wpływu dodatków chemicznych na obniżenie lepkości oleju rzepakowego w mieszaninie. Badania wykazały pozytywny wpływ dodatku na obniżenie lepkości oleju rzepakowego.

The paper presents results of laboratory research of effect of chemical additions on reduction in mixture the viscosity of rapeseed oil. The described research showed the positive influence of addition on lowering the viscosity of rapeseed oil.

Działanie olejów smarowych z dodatkami na organizm ludzki

Wachal A., Majoch A.

Paliwa, Oleje i Smary w Eksploatacji

2000

R. 9, nr 78

31-36