In this study, cement, zeolite powder and three industrial by-products (blast furnace slag, steel fly ash) were selected as additives to study their effects on the swelling potential of red clay with different curing ages dosages. At same time, mechanism reducing was analyzed by scanning electron microscope (SEM) X-ray fluorescence (XRF) tests. The diffraction (XRD) test used detect mineral con...

The influence of additives on the structural behaviour cement-stabilised rammed earth was investigated through an experimental programme based 13 different mixes with varying cement contents (6, 8 and 10% by weight) three types (superplasticiser, air-entraining agent (AEA) hardening accelerator). In total, 156 specimens were fabricated tested at 7 28 days in order to compare their compressive s...

The ordinary Portland cement (OPC)-based solidification process is used extensively to reinforce soils due its available and good bonding properties. Alternative products are in cementitious materials enhance the strength reduce OPC consumption. In this study, effect of additive type mass fraction on microstructure mechanical properties solidified sandy silt investigated. There four types addit...

Scuffing is becoming a quite common failure mode in gears and bearings. It has been shown that AW/EP additives are effective preventing scuffing, but only if they able to form thick tribofilm before encountering severe scuffing-type conditions. This study employed contra-rotating, step-sliding speed scuffing test explore the impact of PMAs on ability ZDDP commercial SP additive-containing packa...

This review considers the recent investigations in scope of biodegradability synthetic polymers, spanning polyethylene (PE), polypropylene (PP), and their corresponding composites, with a focus on influence oxo-additives (mostly transition metal salts). The types mechanisms oxidation acceleration are discussed. Furthermore, both physicochemical biological stages degradation is evaluated (labora...

the pellet-type sno2 sensor was synthesized by the solid state method and the effects of additives such as nano zno (1-12 mol %) and nano in2o3 (1-10 mol %) on the co gas sensitivity of sensor were investigated. the optimum sintering temperature was chosen 800°c because of the porosity content of the samples. the phase analysis and microstructure of the samples were studied by x-ray diffraction...

We evaluated the effect of feed additives on the risk of ruminal acidosis in Holstein heifers (n = 40) fed starch and fructose in a challenge study. Heifers were randomly allocated to feed additive groups (n = 8 heifers/group): (1) control (no additives); (2) virginiamycin (VM); (3) monensin + tylosin (MT); (4) monensin + live yeast (MLY); and (5) sodium bicarbonate + magnesium oxide (BUF). Hei...