Abstract:
A livestock feed additive and a preparing method thereof are provided to reduce the amount of antibiotic used and to speed up the metabolism of domestic animals using garlic by-products and probiotics. A livestock feed additive is composed of garlic by-products consisting of the stems, roots and skins of garlic and probiotics. The garlic by-products represent crushed garlic with diameter of about 0.1 ~ 1mm. The probiotics is selected from the group consisting of Lactobacillus plantarum, Lactobacillus brevis, Pediococcus pentosaceus, Weissella cibaria, Lactobacillus pentosus and Weissella paramesenteroides.
Abstract:
PURPOSE: A natural inorganic material and a method for manufacturing the same are provided to express antibacterial and antifungal properties. CONSTITUTION: A method for manufacturing an inorganic antibacterial and antifungal material comprises: a step of crushing lime stone or dolomite in a size of 20-30 mm and plastisizing at 900-1100 °C for one hour; a step of pulverizing in a size of 100-150 um into particles and a mixing with water in a weight ratio of 1 : 2-5; a step of hydrolyzing and drying; and a step of bead-stirring to prepare slurry.
Abstract:
PURPOSE: A manufacturing method of finely granulated blast furnace slag mixed cement using an air-jet mill is provided to give high strength and hydration properties to the granulated blast furnace slag mixed cement. CONSTITUTION: A manufacturing method of finely granulated blast furnace slag mixed cement using an air-jet mill comprises the following steps: pulverizing granulated blast furnace slag which has particle size of 2-5mm using an air jet mill which includes classifier; obtaining finely granulated blast furnace slag which has average particle size of 2-5micro meters or 16,000-10,000square centimeters/gram; mixing 30-50wt.% of the finely granulated blast furnace slag and 50-70wt.% of normal Portland cement(OPC). The air jet mill has 5-10 bar air pressure and a classification wheel having a 6500-11,000rpm rotation speed. 5-10wt.% of alkali activator and 2-20wt.% of fly ash or silica fume from a heat power plant are additionally used compared to the amount of the finely granulated blast furnace slag used.
Abstract:
PURPOSE: An environment-friendly high-strength water-permeable block using industrial byproducts and low-grade limestone and a manufacturing method thereof are provided to reduce global warming and to reduce carbon dioxide by using low-grade limestone instead of cement. CONSTITUTION: A manufacturing method of an environment-friendly high-strength water-permeable block using industrial byproducts and low-grade limestone is as follows. Powder is prepared by mixing low-grade limestone, binder, and a mixture. The replacement rate adds the water in the pulverized body so that 20% to 10 become. Paste is formed by adding water to the powder so that a ratio of the water and the binder can be 10~20%. 3~25mm natural aggregate or recycled aggregate is added to the paste and is cured to have a 15~25% porous ratio.
Abstract:
본발명은생분해성유기혼화재를이용한천연수경성석회모르타르조성물및 이의제조방법에관한것이다. 상기천연수경성석회모르타르에생분해성유기혼화재를적정량사용하면상기천연수경성석회모르타르의유동성(flow)이증가하여작업성이향상되는효과가있다. 또한, 상기생분해성유기혼화재를적정량사용하면상기천연수경성석회모르타르의응결특성및 강도특성이향상되어짧은양생시간에도 EU 규격에준하는 NHL 5의특성을보이는장점이있다.