4results about How to "Good for long term" patented technology

The invention discloses slag-sulphoaluminate compound gelled seawater and sea sand mortar and a preparation method thereof, and relates to the technical field of building materials. Comprising the following component raw materials: 180-220 parts of functional aggregate; 100 parts of a cementing material; 40 to 50 parts of a functional mixing liquid; the functionalized aggregate is sea sand loaded with a nanocrystalline seed layer on the surface; the cementing material is prepared from granulated blast furnace slag powder, natural anhydrite and high belite sulphoaluminate cement clinker; the functionalized mixing liquid is seawater or artificial seawater dissolved with a composite thixotropic-flocculating agent. According to the scheme, the core problems of low strength and poor durability caused by interface looseness and erosion medium permeation of the seawater and sea sand concrete are solved; and full resource utilization of the seawater, the sea sand and the slag is realized, and high performance, high durability and remarkable economic benefits are achieved.

The invention belongs to the technical field of inorganic gelling agent additives, and particularly relates to a strength deterioration resistant additive for flocculation and dehydration of cement residues, a synchronous grouting material and a preparation method of the synchronous grouting material, and the synchronous grouting material comprises the following components in parts by mass: 0.1-2 parts of a strong electron acceptor; 0.1-1 part of a strong proton acceptor; 0.1-2 parts of a high-charge metal ion compound; 90-180 parts of industrial solid waste; the strong electron acceptor is persulfate; the strong proton acceptor is cesium hydroxide or / and rubidium hydroxide; the high-charge metal ion compound is selected from at least one of ferric nitrate, ferric sulfate, aluminum nitrate or aluminum sulfate; the industrial solid waste is common industrial solid waste and superfine industrial solid waste. The synchronous grouting material has the advantages of being high in stability, excellent in mechanical property, low in cost, environmentally friendly, low in carbon and the like, and high-added-value utilization of dewatered cement slag type waste is achieved easily.

This utility model discloses a sample pretreatment device for rapid microbial detection, mainly relating to sample pretreatment equipment. It includes a heater, a heating plate, and an auxiliary structure. A control button is installed on one side of the heater. The upper surface of the heater is fixed to the heating plate via the auxiliary structure. A sample cup is placed on the upper surface of the heating plate. A stirrer is installed on one side of the heater. An adjustment structure is provided on the upper surface of the heating plate. The adjustment structure includes a circular frame, which is fixedly connected to the heating plate. A fixing groove is formed on the inner wall of the circular frame, and the fixing groove is slidably connected to the sample cup. The beneficial effects of this utility model are: it can conveniently fix the sample cup, preventing sample overflow or leakage due to shaking during stirring, thereby ensuring the stability and safety of the sample during stirring, significantly improving the accuracy of operation, and achieving the advantage of making the sample more stable during stirring.

The application discloses a kind of gradient hierarchical utilization garbage incineration bottom ash preparation's zero clinker ultra-high performance concrete and its preparation method, including following weight parts raw materials: garbage incineration bottom ash 660-700 parts;Mineral powder 460-500 parts;Silica fume 35-45 parts;Fine quartz sand 380-420 parts;Activator 370-380 parts;Modifier 15-17 parts;Steel fiber 110-130 parts.Garbage incineration bottom ash includes following particle size and weight parts garbage incineration bottom ash: 8 μm below garbage incineration bottom ash 35-45 parts;8-40 μm garbage incineration bottom ash 75-85 parts;40-150 μm garbage incineration bottom ash 150-170 parts;150-500 μm garbage incineration bottom ash 380-420 parts.The application cooperates and utilizes garbage incineration bottom ash, mineral powder and silica fume, and does not use Portland cement as UHPC cementing material raw material, and UHPC preparation cost and carbon emission are greatly reduced.