Characteristics of Steam-Cured Carbon Amino Silica Black Mortar Using a Methyl Cellulose Polymer.

Along with the increase in the demand for existing colored concrete, the demand for secondary concrete products of various colors is also increasing. However, the initial surplus water in mortar causes the internal calcium component to leach out and contaminate the surface, and the hardening of concrete that contains pigment is generally slower than that of normal concrete. This study was to evaluate the physical properties of mortar colored by carbon amino silica black (CASB), using a methyl cellulose (MC) polymer to reduce surface efflorescence and increase early strength by means of steam curing.

Analysis the Compressive Strength of Flue Gas Desulfurization Gypsum Using Artificial Neural Network.

Flue Gas Desulfurization (FGD) gypsum is generated as a byproduct for the desulfurization process, using limestone powder as an absorber in the coal-fired power plants. The FGD gypsum is high in calcium sulfate concentrations and has few impurities. Its quality is not far behind compared to natural gypsum.

Surface-Colour Characteristics and Flow of Carbon Aminosilica Black Paste Using a Redispersible Polymer.

The surface colour of exposed concrete is one of the most obvious characteristics of quality because it is the first one to be seen. However, efflorescence generally changes the colour impression of the material surface and of the concrete facade as a whole. This study investigated the efflorescence of carbon aminosilica black (CASB) mortar and the effect of redispersible polymer powder (RPP) on the physical properties of CASB mortar.

Modeling of Carbon Mortar Color Expression Using Artificial Neural Network.

Colored concrete uses pigments and white Portland cement (WPC) to perform decorative functions together with structural function. Pigments are used in permanent coloring of concrete with colors different from the natural color of the cement or the aggregates with mixing WPC. In this study, an artificial neural networks study was carried out to predict the color evaluation of black mortar using pigment and carbon black.

A Study on the Properties of Carbon Black Mortar Using Granulated Blast Furnace Slag and Polymer.

White Portland Cement (WPC) and inorganic pigment have been used in colored concrete, but there are some physical problems such as increases in efflorescence, and poor workability and low economics. The aim of this study was to investigate the effects of GBFS and polymer (methyl cellulose) on the physical properties of carbon black mortar. For this purpose, a flow test, compressive strength test and color evaluation and was carried out on cement mortar mixed with polymer by changing the proportion of cement and ratio of GBFS.

Detrimental effects of cement mortar and fly ash mortar on asthma progression.

Currently, concrete additive materials are used worldwide to improve properties of concrete production and to reduce the total cost of the materials used in the concrete. However, the effects of exposure to various gases emitted from mortar mixed with additive materials are poorly understood. To evaluate the pattern of gas emission from cement mortar and additives, the emission levels of gas including ammonia (NH3) and volatile organic compounds (VOCs) were measured from two different mortar types, Ordinary Portland Cement (OPC), and OPC with fly ash on various time points after manufacture.