The article shows the relation between sustainability and cement manufacture that can be obtained by replacement of clinker with limestone additive. This decreases use energy resources reduces CO2 emissions in production. issue partial Portland substitution finely ground production market-oriented types type CEM II is solved on plant PJSC "Ivano-Frankivsk Cement". indexes physical-mechanical te...

The amount of boron waste increases year by year. There is an urgent demand to manage it in order to reduce the environmental impact. In this paper, boron waste was reused as an additive in road base material. Lime and cement were employed to stabilize the waste mixture. Mechanical performances of stabilized mixture were evaluated by experimental methods. A compaction test, an unconfined compre...

BACKGROUND To identify adverse renal effects due to air pollution derived from a cement plant in Korea. Urinary n-acetyl-B-glucosaminidase (U-NAG) levels in residents living near a cement plant were compared to those in a group who lived farther away from the plant. METHODS From June to August 2013 and from August to November 2014, laboratory tests for U-NAG and heavy metal were conducted on ...

In this work, an efficient procedure for the functionalization of multiwalled carbon nanotube (MWCNTs) based on nitric acid oxidation was presented. The morphologies of MWCNTs oxidized under various conditions were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The FTIR provided clear evidence for the presence of carboxylic groups (–COOH)...

Mortars with two different binders (Portland cement (PC) and high alumina cement (HAC)) were modified upon the bulk incorporation of nano-structured photocatalytic additives (bare TiO₂, and TiO₂ doped with either iron (Fe-TiO₂) or vanadium (V-TiO₂)). Plastic and hardened state properties of these mortars were assessed in order to study the influence of these nano-additives. Water demand was inc...

This paper presents an approach to predicting the intrinsic self-healing in concrete using a hybrid genetic algorithm-artificial neural network (GA-ANN). A genetic algorithm was implemented in the network as a stochastic optimizing tool for the initial optimal weights and biases. This approach can assist the network in achieving a global optimum and avoid the possibility of the network getting ...

For mechanical performance perfection of cement-based material, toughening materials are often added to the cement system, such as solid particles, carbon-based or other inorganic/organic materials. Compared with materials, have better compatibility and more likely form a cross-linked network structure in which can significantly improve properties stone. In this review, new type material ZRJ-S1...