Abstract:
본 발명은 시멘트에서 생성되는 6가크롬을 비롯한 중금속 등의 발암유발 물질을 제거함과 동시에 시멘트의 강도 및 고유 물성이 유지되는 시멘트 첨가물 및 그 제조방법에 관한 발명이다. 또한, 본 발명의 시멘트 첨가물은 열에 의해 6가크롬으로 산화되지 않는 시멘트를 제공할 수 있다.
Abstract:
본 발명은 보차도용 투수블록 제조방법에 관한 것으로, 폐기되는 자원을 재활용하여 특히 투수성이 우수하고, 탈색이나 변색이 없어 반영구적인 사용이 가능하여 보수비용을 절감할 수 있으며, 화력발전소에서 발생되는 부산물인 바텀애쉬를 칼라골재로 제조 함으로써 자원 재활용에 의한 자연보존에 기여할 수 있으며, 시멘트 과다사용으로 인한 탄소배출의 문제가 없는데다가 공기정화 기능까지 갖추도록 한 것으로, 수거한 재활용 바텀애쉬를 분쇄하여 마련한 바텀애쉬입자에 열경화성 수지 및 안료를 착색하여 칼라골재를 제조하는 단계와; 상기 칼라골재와 2액형 열경화성수지와 재활용 유리섬유 및 경화촉진제를 혼합하여 교반하는 단계와; 교반된 칼라골재, 열경화성수지 및 경화촉진제의 혼합물을 성형기에 투입하여 투수블록으로 가압 성형하는 단계와; 상기 성형기에서 성형된 투수블록을 성형기에서 탈형하는 단계와; 상기 성형기에서 탈형된 투수블록을 양생하는 단계를 포함한다.
Abstract:
본 발명은 바텀애시(및/또는 플라이애시)를 주 원료로 하여 발포성형체를 제조하는 방법에 관한 것이다. 구체적으로는, 바텀애시(및/또는 플라이애시)에 고체형태의 고상고화제를 혼합한 뒤, 액상첨가제를 추가 혼합하여 실리콘으로 이루어진 실리콘 몰드에 부어 10 내지 30분 동안 경화하고, 탈형하여 열 건조기에서 열처리하여 건조함으로써 발포성형체를 제조하는 방법에 관한 것이다.
Abstract:
The present invention is an aerated concrete admixture including a matrix of substantially evenly sized and evenly distributed gas filled voids within a geopolymer material, wherein the gas filled voids substantially maintain their position and shape, both during and after the completion of the curing process of the geopolymer. The aeration is introduced into the geopolymer by way of a foam that is gently blended into the admixture so that it is able to maintain its aeration effect on the geopolymer. A plurality of fine polymer fibres may both, or individually, be included in the geopolymer, and the fine polymer fibres are substantially evenly distributed throughout the geopolymer material and interspersed between the matrix of gas filled voids.
Abstract:
Disclosed are magnesium containing compositions and their use in the production of concrete. In particular, disclosed are methods of producing Mg(OH)2 comprising digesting olivine with water.
Abstract:
The present invention is a wet geopolymer mixture including a premade foam. The foam has the effect of aerating the mixture prior to curing. The result of the addition of the premade foam is an aerated geopolymer material that becomes a lightweight cellular geopolymer after curation has occurred.
Abstract:
An environment friendly plaster composition is proposed that provide total replacement of river sand and artificial sand with the industrial waste. The said plaster composition is made up of an industrial waste material, Portland cement, hydrated lime and a plurality of chemical additives. The said industrial waste material is selected from the industrial waste material of a cool burning unit such as pond ash. The said industrial waste mixture forms a base component of the said plaster composition. The Portland cement is added for imparting hardening and binding property to the said plaster composition. The hydrated lime is added for imparting initial cementing property and ceasing a bleeding effect of the said plaster composition. The plurality of chemical additives improves rheological properties of the said plaster composition.
Abstract:
The aim of the invention is to provide a process for preparing a construction material of good fire resistance, good compressive resistance, at a significantly reduced cost of manufacture, wherein an aqueous solution of vitreous sodium silicates, amorphous silica, post-industrial wastes and mineral wastes are mixed to produce a dense sol, which is dried, crushed and annealed. The present invention also relates to the use of the construction material produced by the process of the invention in building industry, especially as a construction material in buildings, where a high compressive resistance of a construction material is required, for example in tower blocks.
Abstract:
Gypsum based compositions, processes for making same, and articles made therefrom. In one example, the gypsum based composition can include about 1.5 wt% to about 3 wt% of a starch, about 11 wt% to about 14 wt% of a paper, about 0.7 wt% to about 2.3 wt% of vermiculite, about 1.3 wt% to about 3 wt% of a plurality of reinforcing fibers, about 7 wt% to about 10 wt% of a binding agent, about 2 wt% to about 4 wt% of perlite, and about 65 wt% to about 75 wt% of a calcium sulfate, where all weight percent values are based on a combined weight of the starch, paper, vermiculite, plurality of reinforcing fibers, binding agent, perlite, and calcium sulfate.