Abstract The article presents data on the deformation of elastic aftereffect concretes various compositions, at different stress levels prolonged loading, effect loading strength and diagram concrete work. Development relative creep deformations steamed concrete. development aftereffects natural hardening B series under stress. Data studied concretes. e_p(t) including after unloading samples.

cracked and un-cracked brazilian disc specimens subjected to diametral compression were used for conducting fracture toughness and tensile strength experiments on a polymer concrete (pc) material. the value of mode i fracture toughness (kic) was determined from the center- cracked brazilian disc and the indirect tensile strength (σt) was obtained from the un-cracked brazilian disc specimen. the...

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This paper discusses the reconstruction of three-dimensional material structures of pervious concretes using two-dimensional digital images obtained from actual specimens, and computational permeability predictions using these reconstructed three-dimensional material structures. The computer programs developed at the National Institutes of Standards and Technology (NIST) are used to obtain thre...

In early 1980s, researchers discovered self-setting calcium orthophosphate cements, which are a bioactive and biodegradable grafting material in the form of a powder and a liquid. Both phases after mixing form a viscous paste that after being implanted sets and hardens within the body as either a non-stoichiometric calcium deficient hydroxyapatite (CDHA) or brushite, sometimes blended with un-r...

This article presents experimental research work oriented toward developing practical design tools for industrial application, and illustrates the potential benefits of the synergistic effect of an ASTM C 618 Class F fly ash (FA) and a high-range polycarboxylate superplasticizer (SP) in the production of conventional concrete. The different concretes considered in this study were produced with ...

As sustainability moves to the forefront of construction, the utilization of high volume fly ash concrete mixtures to reduce CO2 emissions and cement consumption per unit volume of concrete placed is receiving renewed interest. Concrete mixtures in which the fly ash replaces 50 % or more of the portland cement are both economically and technically viable. This paper focuses on a characterizatio...

Innovative building materials are considered, allowing the use of new design solutions and construction durable structures that meet technical requirements aesthetic requirements. The main properties, characteristics, objects methods application hydraulic concrete self-healing described. Self–healing is a stage in development materials. differs from classical recipes by adding fungi bacterial s...

In this paper, we analyze the effects of money on the market for durable goods both empirically and theoretically. Using monthly US data on personal expenditures on durable goods and the housing market, we estimate from a VAR the dynamic responses of the price and quantity of durable goods and housing to money supply shocks, assuming only that money is neutral in the long-run. We then estimate ...