Subject of research: the article considers foamconcrete on quartz cement binder, mass introduction raw materials in construction can be considered practically achievable and economically profitable.
 Purpose technology foam concrete quartz-cement binder is proposed by introducing an ultrafine filler (nanomodifier) from activated waste into reduces consumption 10 % improves its physical mec...

Abstract We prove some important properties of the extremal coefficients a stable tail dependence function (“STDF”) and characterise logistic related STDFs. The well known sufficient conditions for composebility STDFs are shown to be also necessary.