About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Khohryakov O.V. – candidate of technical science E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Khozin V.G. – doctor of technical science, professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Yakupov M.I. – graduate student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Baichev D.I. – student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 Sibgatullin I.R. – director E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Construction and Investment Company «Light», LLC «CNV Aros» The organization address: 420066, Russia, Musina st., 9 Magdeev U.Kh. – academician RAASN, doctor of technical science, professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Moscow State University of Civil Engineering The organization address: 129337, Russia, Moscow, Yaroslavl highway, 26 |
| Title of the article | Evaluation experience of persistence of properties of low water cement flour |
| Abstract. | The problem of aging of a portland cement and its versions at long storage is one of the most actual around the world, and its decision is economically very expensive. As a rule, ordinary portland cement within 6 months of storage loses to 30 % of its activity and aggregates till the sizes of 5-40 mm. However the specified problem of aging is not typical to low water requirement cement (LWRC) peculiar to cements which though receive from a Portland cement or its clinker, but it is unique knitting with a long keeping of initial properties. To check its ability we determined a specific surface, extent of aggregation, activity by durability of the low water requirement cements stored in sealed bags in room conditions within one year. Received results didn't confirm known data on long-term safety of LWRC properties in comparison with ordinary portland cement. Despite insignificant decrease in a specific surface of LWRC it is aggregated in lumps like a portland cement. The water requirement of the sandy solution (GOST 310.4) prepared on the basis of stored LWRC, raises on 12,1 … 21,2 % of rather the fresh prepared LWRC. Sorption humidity of LWRC and a portland cement in 9 months is almost identical and, makes 20,3 and 19,2 %, respectively. |
| Keywords. | Low water requirement cement, keeping the activity in strength, sorption humidity, surface. |
| For citations: | Khohryakov O.V., Khozin V.G., Yakupov M.I., Baichev D.I., Sibgatullin I.R., Magdeev U.Kh. Evaluation experience of persistence of properties of low water cement flour // Izvestiya KGASU. 2012. №2(20) P.214-220. |
