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Introduction Today the structure concrete strength grades of a large number of new buildings are mainly C25~C45, most only with the strength during concrete preparation or acceptance and without the durability.
Taylor: Cement Chemistry.
Lam: Construction and Building Materials Vol. 11 (1997), p. 383-393 [13] Feng Naiqian and Xing Feng: Durability of ordinary concrete and its structure.

Even after the creep deformation at the higher stresses and room temperature, GD n-Au kept the same nanocrystalline structure except for the change in the preferred texture.
It is further surmised that the quasi-two phase state and the phase-transition-like changes of GBs proposed in the present study are intrinsic for the nanocrystalline structure.
Walgraef, Spatio-Temporal Pattern Formation-With Examples from Physics, Chemistry and Materials Science, Springer Verlag, Berlin, (1996)

The TW membrane was found to be capable of removing 30% of chromium at night [42]. 4.3 Doping with metals The purpose of elemental doping metal oxide photocatalysts is to modify their morphological and electrical structure in order to enhance their photocatalytic activity [43].
Journal of Industrial and Engineering Chemistry. 2021 Dec 25;104:186–202
Improving surface structure of photocatalytic self-cleaning membrane by WO3/PANI nanoparticles.

Modification by loaded ion changed the structure of biochar and ion decreased the specific surface areas through blocking pores [25, 26].
Modification changes the structure of biochar and blocks the sorption sites.
Gill, Poor efficacy of herbicides in biochar-amended soils as affected by their chemistry and mode of action, J.

It has layered structure that provides high lubrication by sliding layers one another [6].
At the end of the tribometer tests, optical, scanning electron microscopy (SEM) with EDS and atomic force microscopy (AFM) have been applied to determine the surface morphology and chemical structure of the piston rings and cylinder liners tested in tribometer.
Gunko: Stability of Colloidal Silica Modified by Macromolecular Polyacrylic Acid (PAA)-Application of Turbidymetry Method, Journal of Macromolecular Science, Part A: Pure and Applied Chemistry Vol. 50 (2013), p. 639–643

Cylinders, serving as bluff bodies, find widespread use in various applications, such as designing efficient heat exchangers, enhancing chimney efficiency, constructing offshore structures, managing power cables, controlling nuclear reactions, and regulating fluid flow and temperature in the relevant medium.
Analytical chemistry 76, no. 13 (2004): 3716-3726
Kok, Pillar-structured micro channels for on-chip liquid chromatography: Evaluation of the permeability and separation performance, J.

These components include: waste electrical and electronic equipment (WEEE), chemical sources of a current, measuring and lighting fixtures, household chemistry, varnish and paint materials and medicines etc.
Coatings have complex multicomponent structure with varying degrees of toxicity.
In the further processing sorted material is crushed, screened and divided into factions with the help of technological processing, which retrieved the steel, nonferrous metals and subjected to treatment faction [39, 40].In addition to the processing of precious metals from waste electronic equipment, it is necessary to ensure efficient processing of polymeric materials in its structure.

Study of Catalysts for Suberinic Acid-Based Adhesive Polymerization Raimonds Makars1,2,a∗, Janis Rizikovs1,b, and Aigars Paze1,c 1Latvian State Institute of Wood Chemistry, Dzerbenes iela 27, Riga, LV-1006, Latvia 2PolyLabs SIA, Mukusalas iela 46, Riga, LV-1004, Latvia araimonds.makars@kki.lv, bjanis.rizikovs@kki.lv, caigars.paze@kki.lv Keywords: Birch Outer Bark, Suberinic Acids, Catalysts, Bio-Based Adhesive, Particleboards Abstract.
Hexamine can be used as a hardener for tannin-based adhesives [13, 14], which could possibly contribute to the cross-linking to phenolic structures in SA-based ahesive.
Protonic acid, Lewis acid, as well as tin-based catalysts are proven to be potential catalysts for polymerization of SA-like structures.

Their weakness to corrosion causes significant decrease in the useful lifespan of carbon steels, breakdown of structures and unforeseen accidents in aqueous industrial conditions.
The presence of anions of chlorides, nitrates, thiosulphates are the major causes of carbon steel corrosion due to accelerated oxidation of the steel surface causing huge corrosion damage to machineries and structures constructed with carbon steels [2 – 4].
Industrial and Engineering Chemistry Research, 49, 3986 – 3991

Therefore, optimizing industrial structure, transform the ways to achieve economic growth, adjust emergy input structure, relay on technology development, and increase emergy utilize rate are development orientations of Hubei province’s agriculture ecology economic system.
In Trends in Ecological Physical Chemistry, 1993, 187-215