The effect of fineness, water requirement and loss on ignition on strength contribution of fly ash has been made relatively overall study, Which indicates that fineness and water requirement are the Rey parameters, while loss on ignition is of no significance.
In this paper granite polishing tools manufactured inland and imported from abroad are analysed and compared in respect of hardness (HR), filler loss on ignition, content of abrasive grits, compositions, density, etc.
Plasma treatment of natural magnesite made it possible to obtain a material corresponding to grade-2 electrical-engineering periclase with respect to chemical composition; however, its loss on ignition was found to be high (0.5%).
Strongly serpentinized Nizhne-Tagil'sk dunite (loss on ignition more than 15%) has a high shrinkage during firing, and therefore in the unfired form is unsuitable for producing forsterite products.
The areas with a larger clay content had larger values of mineral N, potentially available N, loss on ignition and gravimetric water content, and the converse was true for the areas with more sandy soil.
The effect of fineness, water requirement and loss on ignition on strength contribution of fly ash has been made relatively overall study, Which indicates that fineness and water requirement are the Rey parameters, while loss on ignition is of no significance. In the case of fineness, correlation between 45μm sieve residue and strength contribution is more significance than that of 80μm sieve residue and sPecitic surface area. Pozzolanic activity index is a Paramete...
The effect of fly-ash with high percent of loss on ignition(12. 8%) on the strength of mortar was investigated. Two series mortar specimens with different content of fly-ash from weight of cement were tested. The water requirement of fly-ash mortars increases as fly-ash content increases. The mixes containing fly-ash show a greater increase in compressive strength and flexural strength after heat-humidity processing, than the OPC mixes. The mix containing 30% fly-ash from weight of c...
In this paper granite polishing tools manufactured inland and imported from abroad are analysed and compared in respect of hardness (HR), filler loss on ignition, content of abrasive grits, compositions, density, etc. X-ray distraction, energy spectrum and SEM are used for the determination. Ways to improve the properties of the polishing tools are suggested.