摘要:
Cement and concrete additives and related methods of making and using such additives are disclosed and described. An additive can include molasses and a carrier. An enhanced Portland cement composition can comprise about 97 wt % to 99.9 wt % of the composition and the above described additive comprises about 0.01 wt % to about 3 wt % of the composition.
摘要:
Various building materials constructed from different recycled components are provided. Such materials include boards, bricks, and the like, and exhibit differing levels of tensile strength, heat resistance, and other physical and chemical properties. The capability of introducing varied collected items, including paper, paperboard, clothing fibers, wood chips and strips, raffia bags, used engine oil, etc., and produce a resilient and dimensionally stable building material is presented herein. Replacement of timber and concrete is permitted with such a new material based upon renewable resources. The method of production and use of such materials is encompassed herein as well.
摘要:
A cementitious mixture for concrete including an admixture including dunder having a solids content in a range of from 5% to substantially 100% by weight, the dunder being added to the cement in a range of from 0.1% to 5% by weight of cement in a concentration which results in the initial setting time being less than thirty-six hours.
摘要:
Use of waste generated as a byproduct of a first manufacturing process as an air entraining admixture (ABA) in a second product. In some instances, the waste materials can be used as an AEA during cement and/or concrete formation, and may also be waste materials produced during shampoo manufacturing. It is contemplated that the use of non-conventional materials as an AEA conventional applications will often result in products that have performance characteristics similar to conventional AEAs.
摘要:
A process for producing concrete comprising mixing barkhan sand with a fuel selected from the group consisting of a liquid fuel and a solid fuel, and a plastic binder selected from the group consisting of clay, loess, loam and a surfactant liquifying the charge composition and reducing its water consumption, the component being present in the following proportions, percent by weight:barkhan sand: 95 to 30fuel: 3 to 20plastic binder: 2 to 60The resulting charge is granulated, the granules are calcined at a temperature ranging from 1,000.degree. to 1,600.degree. C. The calcined material is crushed. The crushed material is mixed with cement and water, cement being used in an amount of from 10 to 100% by mass of the calcined material and water--in an amount of from 10 to 60% by mass of the total of the calcined material and cement.
摘要:
The present invention concerns a process for oxidizing lignin at alkaline conditions. This oxidized lignin can be used as a dispersant in various end-products, for example as a renewable plasticizer in cement-containing products, such as concrete, where the ability of the oxidized lignin to endure alkaline conditions is an advantage. Further, the invention concerns a concrete mixture containing aggregate, cement, water and a plasticizer formed of oxidized lignin, and a process for producing such a concrete mixture. The oxidized lignin can be manufactured using a process, where the lignin starting material is reacted with an oxidizing agent in solution in alkaline conditions.
摘要:
The present invention provides a composition for advanced hybrid geopolymeric functional materials possessing very broad application spectrum ranging from cementitious materials to advanced functional materials having “Inorganic-Organic Hybrid” matrix in contrast to the limited application of conventional geopolymeric materials having “Inorganic matrix” only. The invention further relates to a process for the preparation of these materials. The process obviates the need of external addition of sodium silicate which is one of the costliest and main raw materials in conventional geopolymerisation processes. Interestingly, in the present invention the sodium silicate has been synthesized in situ by designing of conditions for synergistic and simultaneous mechano-chemical reactions among the selected raw materials viz. inorganic and organic wastes under alkaline environment. This results in the formation of “Hybrid inorganic-organic frame work” of sodium silicate, which facilitates uniform dispersion of reacting species, thus resulting in the formation of homogeneous geopolymeric matrix with improved characteristics.
摘要:
Various building materials constructed from different recycled components are provided. Such materials include boards, bricks, and the like, and exhibit differing levels of tensile strength, heat resistance, and other physical and chemical properties. The capability of introducing varied collected items, including paper, paperboard, clothing fibers, wood chips and strips, raffia bags, used engine oil, etc., and produce a resilient and dimensionally stable building material is presented herein. Replacement of timber and concrete is permitted with such a new material based upon renewable resources. The method of production and use of such materials is encompassed herein as well.