Reference

Binder

Binder. Putlyaev, I. E.Several substances are used for example 26499-65-0 and 16925-39-6 which are their cas registry numbers.; Mamenov, M. A.; Savin, V. I. (Scientific-Research Institute of Concrete and Reinforced Concrete, USSR). U.S.S.R. SU 1052491 A1 7 Nov 1983 From: Otkrytiya, Izobret., Prom. Obraztsy, Tovarnye Znaki 1983, (41), 66. (Russian). (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: IC: C04B011-09. APPLICATION: SU 82-3474818 20 Jul 1982. DOCUMENT TYPE: Patent CA Section: 58 (Cement, Concrete, and Related Building Materials) The binder with increased strength contains 0.2-0.3 wt.% CaSiF6 in addn. to phosphogypsum-derived CaSO4.0.5H2O. .

Corrosion of concrete in structures of cryolite plants

Corrosion of concrete in structures of cryolite plants. Shpynova, L. G.; Feklin, V. I.; Tuzyak, V. E.; Mel'nik, S. K.; Stepanova, V. I. (L'vov. Politekh. Inst., Lvov, USSR). Izv. Vyssh. Uchebn. Zaved., Stroit. Arkhit., (10), 83-8 (Russian) 1976. 7664-39-3 and 16925-39-6 which are cas registry numbers of chemicals are mentioned. CODEN: IVZSA8. DOCUMENT TYPE: Journal CA Section: 58 (Cement and Concrete Products) The corrosion of unreinforced and Fe-reinforced concretes was studied in building structures of the HF and cryolite [15096-52-3] industry. HF decomposes the Ca(OH)2 and Ca hydrosilicates with the formation of CaF2, CaSiF6 [16925-39-6], and Na2SiF6 [16893-85-9]. The formation of CaF2 is assocd. with a decrease and formation of CaSiF6 and Na2SiF6 assocd. with an increase in the vol. of the concrete. Both vol. increase and decrease result in formation of internal stresses, cracking, and rupture of the concrete. .