摘要:
The present invention relates to a healing agent for concrete mix designs or product, method to prepare the same, said agent containing porous micro concrete, bacteria and/or bacteria spores, at least a calcium source and a carbon source, and its use to enable a self-healing of microcracks or cracks that form in a hardened concrete.
摘要:
본 발명은 주택, 아파트 등의 건축물 바닥에 시공하는 단열 방음을 위한 경량 콘크리트 판넬 및 이의 제조방법에 관한 것으로서, 더욱 상세하게는 발포된 펄라이트 경량 골재에 포틀랜드 시멘트, 물 및 AE 감수제를 혼합하여 몰드에 투입함으로써 콘크리트 판넬 형상으로 성형한 후 콘크리트 판넬의 상부 표면이 그 위에 시멘트 몰탈(10)이 견고하게 시공될 수 있도록 저주파 진동에 의해 요철부를 형성하여 거칠게 되도록 하고, 상기 콘크리트 판넬의 하부 표면이 방진고무패드 시트가 견고하게 접착되어 변형이 일어나지 않도록 고주파 진동에 의해 매끄러운 평탄면이 되도록 하고, 양생 및 탈형 후 고온공기 양생에 의해 내부 기포 내 수분을 제거하여 제조된 건축물 바닥 단열 방음용 경량 콘크리트 판넬 및 그 제조방법에 관한 것이다.
摘要:
The present description relates to asphalt coating compositions, and methods of application, for coating asphalt paving surfaces. In particular, sprayable coating compositions are provided, and methods of application, for coating asphalt paving surfaces. In the coating composition, a lightweight aggregate material of sprayable particle size is stably suspended in a sprayable asphalt emulsion in an amount sufficient to increase the micro-texture surface roughness of the cured coating.
摘要:
A method of disposal and utilisation of dusts from the combustion installation and sludge from flotation enrichment of non-ferrous metal ores containing hazardous substances, in the process of light aggregate production for the construction industry, wherein the dusts from the combustion installation and/or the sludge from flotation enrichment of non-ferrous metal ores with the fraction of 0 to 0.2 mm are mixed with silica dust with the fraction from 0 to 0.063 mm, and then the resulting product is mixed with particulate glass waste in the form of dust with the fraction of 0 to 0.2 mm and waste sludge from wastewater treatment plants with a content of 15 to 50% of combustible components and/or sludge from coal flotation containing up 32%) of coal, and the resulting mixture in the form of a thick paste is granulated to form granules with a fraction from 2 to 20 mm, which after drying are subsequently converted thermally in a temperature from 1000 to 1200°C, till the moment of incorporation of the hazardous substances into the polycrystalline structure of the sinter with the properties of a lightweight aggregate. Waste in the form of fine dusts from the combustion installation and/or sludge from flotation enrichment of non-ferrous metal ores, silica dust and glass dust are premixed, and then waste sludge and/or sludge from coal flotation is added, and the entire mixture is stirred till a homogeneous mixture for forming granulate is obtained. Hazardous substances from hazardous waste are stabilised as a result of a thermal synthesis in the produced lightweight aggregate in the form of solid silicate compounds. The combustible ingredients of waste sludge and/or sludge from coal flotation are burned out at the stage of sintering, generating gases which cause the formation of pores in the granules.
摘要:
The present invention relates to a coal ash recycle device and a method therefor. More particularly, a coal ash recycle device including a collector for unburnt coal and a manufacturing element for light weight aggregates is installed inside a preexisting fossil-fuel power plant. Subsequently, the entire amount of coal ash produced from the fossil-fuel power plant is recycled based on its use of this coal ash recycle device and method thereof. The coal ash recycle device and method thereof have the following advantages: prevents surrounding environmental pollution, which occurs while transporting wastes to a recycling plant; saves transportation expenses; utilizes unburnt carbon contained in coal ash since the entire amount of coal ash is recycled to powder concrete; and prevents soil erosion and environmental pollution since waste landfills are avoided.
摘要:
The method according to the invention allows insulating clinker, beads, to be manufactured on the basis of materials which are present in arctic regions. These materials comprise clay and silt (1) and porosity agents (2) comprising granular shrimp and crab shells as well as oil in the form of waste oil or blubber. When lumps of this material (3) after drying (3) are fired (5), blistered clinker (6) is formed, which is suitable as an insulation material. Hereby, insulation materials may be produced in arctic regions on the basis of the occurring types of clay and using waste products, such as oil and shrimp/crab shells.
摘要:
A cigarette with filter (1) which comprises a tobacco part (2) being composed of tobacco leaves wounded with tobacco paper and, continuously connected therewith, a filter (3), wherein the filter (3) has a first filter part (4) arranged on the side of a smoker's mouth and a second filter part (5) arranged between the first filter part (4) and the tobacco part (2), characterized in that the second filter part (5) contains a powder produced by a method comprising compounding fly ash and clay as primary components and titanium dioxide, iron oxide and a phenol resin as secondary components, to thereby produce a porous ceramic, and then pulverizing the ceramic. The cigarette with filter (1) can be used for selectively adsorbing the tar contained in the smoke of tobacco, and thus for improving the capability of removing tars.
摘要:
The invention relates to particular expandable styrene polymers containing homogeneously distributed graphite particles. Said styrene polymers can be treated to form self-extinguishing foams with a density