摘要:
The invention relates to a use of a composition containing polyorganosiloxane S and a method of reducing corrosion on steel reinforcement in reinforced concrete constructions, and also a concrete structure which is produced using such compositions. It is highly suitable for the renovation of old concrete but also for inhibition of corrosion of reinforcing iron in fresh concrete.
摘要:
The invention relates to a use of a composition containing polyorganosiloxane S and a method of reducing corrosion on steel reinforcement in reinforced concrete constructions, and also a concrete structure which is produced using such compositions. It is highly suitable for the renovation of old concrete but also for inhibition of corrosion of reinforcing iron in fresh concrete.
摘要:
The invention relates to polymers in a solid state which may be obtained by reaction of at least one polymer, produced from at least one monomer, selected from unsaturated mono- or di-carboxylic acids, or analogues of unsaturated mono- or di-carboxylic acids and optionally at least one ethylenically-unsaturated monomer with at least one polymer which is terminated at one end by terminal groups which are non-reactive under normal reaction conditions and hydroxy- or amino-functionalised at the other end thereof and, optionally, at least one amine. The invention further relates to polymers in a solid sate which may be obtained by the reaction of at least one monomer, selected from unsaturated mono- or di-carboxylic acids or analogues of unsaturated mono- or di-carboxylic acids in the presence of a radical initiating agent with at least one monomer, selected from the group of unsaturated esters or amides of a polymer, terminated at one end by terminal groups which are non-reactive under normal reaction conditions and hydroxy- or amino-functionalised at the other end thereof, with optionally at least one ethylenically unsaturated monomer. The production and use of solid polymers as dispersants and fluidising agents in cement systems is also disclosed.
摘要:
The invention relates to polymers in a solid state which may be obtained by reaction of at least one polymer, produced from at least one monomer, selected from unsaturated mono- or di-carboxylic acids, or analogues of unsaturated mono- or di-carboxylic acids and optionally at least one ethylenically-unsaturated monomer with at least one polymer which is terminated at one end by terminal groups which are non-reactive under normal reaction conditions and hydroxy- or amino-functionalised at the other end thereof and, optionally, at least one amine. The invention further relates to polymers in a solid sate which may be obtained by the reaction of at least one monomer, selected from unsaturated mono- or di-carboxylic acids or analogues of unsaturated mono- or di-carboxylic acids in the presence of a radical initiating agent with at least one monomer, selected from the group of unsaturated esters or amides of a polymer, terminated at one end by terminal groups which are non-reactive under normal reaction conditions and hydroxy- or amino-functionalised at the other end thereof, with optionally at least one ethylenically unsaturated monomer. The production and use of solid polymers as dispersants and fluidising agents in cement systems is also disclosed.
摘要:
A water-based coagulating and hardening accelerator for hydraulic binding agents, comprising sulfate, aluminum and organic acid. The molar ratio of aluminum to organic acid is less than 0.65. Preferably, the molar ratio of aluminum to carboxylic acid is less than 0.60 and greater than 0.38.
摘要:
A setting and curing accelerator for hydraulic binders comprises: Al2(SO4)3 aluminum sulfate, Al(OH)3 aluminum hydroxide and mineral acid in aqueous solution. The setting and curing accelerator preferably comprises: 10-50% of Al2(SO4)3 aluminum sulfate, 5-30% of Al(OH)3 aluminum hydroxide, 0.5-10% of a mineral acid in aqueous solution.
摘要翻译:水硬性粘合剂的固化和固化促进剂包括:Al 2 O 3(SO 4)3硫酸铝,Al(OH)3, / SUB>氢氧化铝和无机酸在水溶液中。 固化和固化促进剂优选包含:10-50%的Al 2 O 3(SO 4)3·3硫酸铝,5-30%的Al (OH)3·N 3·氢氧化铝,0.5-10%的无机酸水溶液。
摘要:
The invention relates to a stable aqueous particle dispersion, wherein the particles in an aqueous medium are stabilised by a polymer stabiliser embodied in the form of a polycarboxylate.
摘要:
There is described a thixotroping and set accelerating additive for mixtures which contain as component a hydraulic binder and/or a latent-hydraulic binder and furthermore water and optionally also an aggregate and/or other additives. The inventive thixotroping and set accelerating additive consists of one or more esters of the carbonic acid or said additive is a mixture which has a pH-value of not more than 8.0, preferably not more than 7.5 and contains as component at least one of said carbonic acid esters.Optionally the inventive additives can comprise further components which frequently are added to materials containing a hydraulic binder in order to improve the workability and/or the properties of the final building material, like concrete plasticizers, concrete super-plasticizers, set retarding agents, set accelerating agents, air entraining agents and optionally further thixotroping agents and mixtures of two or more such additives. The present invention furthermore concerns a mixture containing a hydraulic binder and the inventive additive and furthermore a process for preparing such a mixture and an apparatus for performing the process.
摘要:
Voltage balancing in multi-cell battery packs is improved by estimating instantaneous voltages on the cells. In accordance with one embodiment, an apparatus for reading voltages from multiple voltage sources includes a first multiplexer coupled to multiple voltage sources and a controller. The controller is programmed to output from the first multiplexer a sequential pair of voltages read from each of the multiple voltage sources. The multiple sequential pairs of voltages all have a common midpoint in time. The multiple sequential pairs of voltages are all read within a small time window, such as 100 microseconds. In one embodiment, the multiple voltage sources are Li-ion or other high-voltage cells, though other types of cells can also be used.