Nanocement Standards and MSDS
Moscow IMET is very pleased to announce that Nano Cement produced with our technology is fully compliant with ASTM Cement Specification C 1157. ASTM C 1157 is one of three cement standards approved by ASTM along with C 150 (OPC) and C 595 (Blended Hydraulic Cements).
Until 1992, specifications for cement had both prescriptive and performance features. Performance features included requirements for setting time, strength, and expansion. Prescriptive features included limits on chemical composition and some physical properties plus restrictions on additions. Both ASTM C 150 (for portland cement) and ASTM C 595 (for blended hydraulic cement) have prescriptive elements.
In 1992, the first performance- based specification for blended cements, ASTM C 1157, was issued. As an example of the difference between prescriptive and performance requirements, ASTM C 150 limits the tricalcium aluminate (C3 A) level in portland cement to control sulfate resistance. This is solely a prescriptive requirement.
The C3 A level is obtained from results of chemical analysis of the cement. However, in ASTM C 1157, sulfate resistance is controlled by evaluating laboratory tests of mortar prisms made with the cement. The laboratory test is intended as a predictor of field performance of concrete.
After more than 23 years of use and testing ASTM C1157 is fully accepted by and incorporated in ASTM C 94 (Ready mix specification), ACI 318 (Building Code) and ACI 301 (Structural concrete specification).
Since the nanocement is a new product, the new GOST prestandard was recently issued PNST 19-2014. The new standard references traditional cement GOST standards, the state standards of the Russian Federation: GOST 30515 (unified with the European standard ЕN 197-1; ASTM C - 150), GOST 31108 and other international standards for cement industry.