SU69600A1 - The method of obtaining expanding cement - Google Patents

The method of obtaining expanding cement

Info

Publication number
SU69600A1
SU69600A1 SU502A SU347221A SU69600A1 SU 69600 A1 SU69600 A1 SU 69600A1 SU 502 A SU502 A SU 502A SU 347221 A SU347221 A SU 347221A SU 69600 A1 SU69600 A1 SU 69600A1
Authority
SU
USSR - Soviet Union
Prior art keywords
mixture
cement
ground
clay
water
Prior art date
Application number
SU502A
Other languages
Russian (ru)
Inventor
П.П. Будников
Original Assignee
П.П. Будников
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by П.П. Будников filed Critical П.П. Будников
Priority to SU502A priority Critical patent/SU69600A1/en
Application granted granted Critical
Publication of SU69600A1 publication Critical patent/SU69600A1/en

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  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

Насто щее изобретение касаетс  упрощенного способа получени  расшир ющегос  цемента.The present invention relates to a simplified method for producing expandable cement.

Сущность предлагаемого способа заключаетс  в следующем. Каолин или глина обжигаетс  при температуре 700-800°, после чего измельчаетс  до прохождени  через сито в 900 отв/см без остатка. К измельченному каолину или глине добавл етс  известь совместно с портланд-цементом (или без последнего) в следующей примерно пропорции (в%):, ,The essence of the proposed method is as follows. The kaolin or clay is burned at a temperature of 700-800 °, after which it is crushed to pass through a sieve of 900 holes / cm without a residue. Lime is added to ground crushed kaolin or clay together with Portland cement (or without the latter) in the following approximate proportion (in%) :,

Каолина или глины ..... ... 26 35Kaolin or clay ..... ... 26 35

Портланд-цемента марки «300 . . 31 - Извести-пушонки43 65Portland cement brand “300. . 31 - Lime-push 43

Тесна  смесь указанных компонентов затвор етс  70% воды по весу и оставл етс  твердеть в услови х воздушного или водного хранени  в течение 7-15 суток. Затвердевший и высушенный цемент измельчаетс  и смешиваетс  с полуводным гипсом в пропорции: 50% полуводного гипса и 50% затвердевшего и измельченного цемента указанного выше состава .The tight mixture of these components closes 70% of the water by weight and is allowed to harden under air or water storage for 7-15 days. Hardened and dried cement is ground and mixed with semi-aquatic gypsum in a proportion: 50% semi-aquatic gypsum and 50% hardened and crushed cement of the above composition.

2323

Полученна  смесь (расшир юща с  добавка) добавл етс  к портландцементу (1 : 3 с песком) или другому гидравлическому в жущему в количестве от 5 до 15% от общего веса. Целесообразно при этом к воде затворени  или к цементу добавл ть 1-2% CaCla от веса цемента. Степень расширени  цемента колеблетс  в пределах от 0,05 до 0,7% через . 7 суток с момента погружени  образца в воду.The resulting mixture (expanding additive) is added to Portland cement (1: 3 with sand) or another hydraulic mixture in an amount ranging from 5 to 15% of the total weight. At the same time, it is advisable to add 1-2% of CaCla to the weight of the cement to the water of the cement or to the cement. The degree of cement expansion ranges from 0.05 to 0.7% through. 7 days from the moment the sample is immersed in water.

Предмет изобретени Subject invention

Claims (2)

1. Способ получени  расшир ющегос  цемента на основе известных гидравлических в жущих и расшир ющихс  добавок, отличающийс  тем, что в качестве такой добавки примен ют смесь, состо щую примерно из 26% обожженной при 700-800° глины или каолина, 43% извести-пушонки и 31% портландцемента; эту смесь после затворени  ее водой, твердени  и сушки измельчают и смешивают с равным количеством измельченного сульфата кальци .1. A method of producing expanding cement based on known hydraulic in-line and expanding additives, characterized in that a mixture consisting of about 26% clay or kaolin calcined at 700-800 ° C, 43% lime is used as such an additive fluff and 31% of Portland cement; this mixture, after mixing it with water, curing and drying, is ground and mixed with an equal amount of ground calcium sulfate. 355355 № 69600- 2 -No. 69600-2 - 2. Видоизменение способа по п. 1,извести-пушонки, эту смесь затвор отличающеес  тем, что в ка-ют водой, а после твердени  и сушки2. Modification of the method according to claim 1, lime-fluff, this mixture is a shutter, characterized in that it is washed with water and, after hardening and drying честве добавки примен ют смесь, со-измельчают и смешивают с равнымthe mixture is applied, co-crushed and mixed with an equal сто щую примерно из 35% обож-количеством измельченного сульфатаabout 35% of the total ground sulphate женных каолина или глины и 65%кальци .kaolin or clay and 65% calcium.
SU502A 1946-07-29 1946-07-29 The method of obtaining expanding cement SU69600A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU502A SU69600A1 (en) 1946-07-29 1946-07-29 The method of obtaining expanding cement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU502A SU69600A1 (en) 1946-07-29 1946-07-29 The method of obtaining expanding cement

Publications (1)

Publication Number Publication Date
SU69600A1 true SU69600A1 (en) 1946-11-30

Family

ID=52397081

Family Applications (1)

Application Number Title Priority Date Filing Date
SU502A SU69600A1 (en) 1946-07-29 1946-07-29 The method of obtaining expanding cement

Country Status (1)

Country Link
SU (1) SU69600A1 (en)

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