摘要:
The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and a process for the preparation of a hardening accelerator composition by reaction of a calcium compound with a silicon dioxide containing component under alkaline conditions, in both cases the reaction of the water-soluble calcium compound with the water-soluble silicate compound being carried out in the presence of an aqueous solution which contains a water-soluble comb polymer suitable as a plasticizer for hydraulic binders. The invention concerns also a composition of calcium silicate hydrate and comb polymer, its use as hardening accelerator and for the reduction of the permeability of hardened compositions.
摘要:
The invention relates to a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound, said reaction being effected in the presence of a water-soluble dispersant comprising at least one polyalkylenglycole structural unit with a functional group at one end of the polyalkyleneglycole, being able to interact as an anchor group with the surface of cement particles, the hardening accelerator composition and its use.
摘要:
Process for the preparation of a sprayable hydraulic binder composition containing as main components water, aggregates, hydraulic binder, set accelerator, characterized in, that a calcium silicate hydrate (C-S-H) containing component is added before and/or at the spray nozzle.
摘要:
Process for the preparation of a sprayable hydraulic binder composition containing as main components water, aggregates, hydraulic binder, set accelerator, characterized in, that a calcium silicate hydrate (C-S-H) containing component is added before and/or at the spray nozzle.
摘要:
The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and by reaction of a calcium compound with a silicon dioxide containing component under alkaline conditions, in both cases the reaction being carried out in the presence of an aqueous solution of a water-soluble polymer, which contains sulphonic acid and/or sulphonate groups and aromatic groups. The invention concerns also the reaction product of said processes and its use as hardening accelerator for building materials.
摘要:
La présente invention concerne des particules composites de latex encapsulées constituées d'un coeur comprenant au moins un polymère organique (latex), au moins en partie recouvert par une ou plusieurs couches de phase minérale comprenant au moins un silicate d'alcalino-terreux hydraté insoluble dans l'eau tel qu'un silicate de calcium hydraté insoluble dans l'eau ou un silicate de magnésium hydraté insoluble dans l'eau ou une de leurs phases mixtes. Elle a de même pour objet l'utilisation des particules composites de latex encapsulées dans une composition de liant minéral. Enfin, l'invention a pour objet les compositions de liants comprenant les particules composites de latex encapsulées et leurs utilisations dans l'industrie du bâtiment, du génie civil ou du pétrole.
摘要:
The invention concerns a method for accelerating setting of a hydraulic mineral binder composition with added adjuvant including hydrophilic functions. The invention also concerns a composition of hydraulic mineral binders obtainable by said method to accelerate setting. The invention further concerns the use of said hydraulic mineral binder composition in the building industry, civil engineering or oil industry.
摘要:
Vorgeschlagen wird die Verwendung einer Abbindebeschleuniger-Zusammensetzung für anorganische Bindemittel, welche mindestens ein als Fließmittel für hydraulische Bindemittel geeignetes wasserlösliches Kammpolymer und Calciumsilikathydrat-Teilchen umfasst, bei der Erschließung, Ausbeutung und Komplettierung unterirdischer Erdöl- und Erdgaslagerstätten sowie bei Tiefenbohrungen. Die erfindungsgemäße Verwendung beschleunigt nicht nur das Abbinden und Erhärten der Zementschlämmen sondern verkürzt auch die Zeit, in welcher die statische Gelfestigkeit der erhärtenden Zementschlämmen von 100 lb/100 ft 2 (4,88 kg/m 2 ) auf 500 lb/100 ft 2 (24,4 kg/m 2 ) ansteigt.
摘要翻译:提出了一种用于包括至少一个适合作为流动剂用于水硬性粘合剂的无机粘合剂的使用硬化促进剂组合物的水溶性梳形聚合物和水化硅酸钙颗粒,在地下油气藏的发展,开发和完成和在深井。 根据本发明的用途不仅加快水泥浆料的凝固和硬化而且缩短了时间,其中的100磅/ 100平方英尺(4.88公斤/ m 2)至500磅/100平方英尺硬化水泥淤浆的静态凝胶强度(24.4 公斤/平方米)增加。
摘要:
The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and by reaction of a calcium compound with a silicon dioxide containing component under alkaline conditions, in both cases the reaction being carried out in the presence of a polycondensate containing at least one structural unit consisting of an aromatic or heteroaromatic moiety bearing a polyether side chain and at least one structural unit consisting of an aromatic or heteroaromatic moiety bearing at least one phosphoric acid ester group and/or its salt. The invention concerns a composition of calcium silicate hydrate and the polycondensate, its use as hardening accelerator and for the reduction of the permeability of hardened compositions.
摘要:
L'invention concerne un procédé pour accélérer la prise d'une composition de liants minéraux hydrauliques adjuventée en additif comprenant des fonctions hydrophiles. L'invention concerne également une composition de liants minéraux hydrauliques susceptible d'être obtenue par ce procédé pour accélérer la prise. L'invention concerne également l'utilisation de cette composition de liants minéraux hydrauliques dans l'industrie du bâtiment, du génie civil ou du pétrole.