This review investigated the impacts of the GAs on the performance of some properties of cement when used as either mortar and/or concrete. The influence of the GAs incorporation in cement grinding on properties such as workability and setting times of the placed concrete and/or mortar has been covered in this review.

A huge amount quantity of spent wash has been produced by the distilleries in India whose disposable into water bodies or land causes a number of environmental problems.

The ever-increasing generation of distillery spent wash on the one hand and stringent legislative regulations of its disposal on the other has stimulated the need for developing new technologies ...

The effect of the media shape on grinding kinetics of cement clinker in a ball mill was investigated. Results indicated that cement clinkers obey first-order breakage kinetics in the case of both balls and cylinders.

Spent wash is the main waste stream. It has a BOD of about 30,000 to 60,000mg/lit. 5. COD of about 1,00,000 mg/lit. pH – acidic (4 – 5) Colour- dark brown. About 15% solids content. Ash contains Potash as K2O.

The amount of limestone fillers in cement and/or the finer grinding do not have particularly harmful consequences on the dimensional stability. With higher content, the fillers even have a beneficial effect because of shrinkages observed under water.

Investigation on the optimal chemical structure of methacrylate ester based polycarboxylate superplasticizers to be used as cement grinding aid under laboratory conditions: Effect of anionicity, side chain length and dosage on grinding efficiency, mortar workability and strength development

Grinding aids (GAs) are an important addtive in the cement production process. However, the relationship between the molecular structure of GAs and it…

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To improve the wear resistance and mineral crushing performance of grinding rollers in cement, mining, and other engineering fields, a striped groove morphology was designed on the normal grinding roller surface in this study.

It can not be ignored in improving cement technology. Based on this, this paper analyzes the influencing factors of grinding aid effect in cement grinding process.

Grinding aids are materials that are added to cement mixtures to improv e the characteristics of the cement or increase. the e ciency of the milling systems or both in the clinker grinding ( nish ...

In this study, the effects of GA on transportation rate of the ground material inside the cement ball mill and the effects of this change on the whole grinding circuit were investigated. In this context, industrial tests were carried out with three different dosages of an amine-based commercial GA in a closed-circuit cement ball mill.

Assaad and Issa compared the effect of grinding aids based on triethanolamine (TEA) and glycol (GLI) in different variants [ 7 ]. They investigated the impact of these additives on variations in the flow of cement pastes, including static yield stress and viscosity.

Grinding aids (GAs) are increasingly used during cement production to reduce energy consumption and/or optimize clinker factor. This paper seeks to assess the effect of such additions on variations in flow of cement pastes, including static yield stress (τ0) and viscosity (η). Grinding tests were performed at fixed specific energy …

The positive effect of spent wash on crop production is well recorded (Rajagopal et al., 2014;Pugazh et al., 2016) reported that total chlorophyll content, crop growth rate (CGR), total dry matter ...

This research focuses on investigating the effects of the three different grinding aids, consisting of a mixture of amine, glycol and polyol in different ratios, on the model parameters of a two-compartment cement ball mill and an air classifier.

Chemical and physical reactivations were evaluated using several acid-wash procedures (HCl, HNO 3, H 2 SO 4) and thermal treatment (650–950 °C) methods, respectively. The effect of the reactivation processes on the mechanical properties was evaluated determining ball pan hardness and normal abrasion in pulp resistance.

Sulphate attack can cause expansion of concrete due to the formation of gypsum and ettringite. Recently, spent bleaching earth ash (SBEA) is being used as a partial cement replacement in concrete. In this study, the effects of unground SBEA (USBEA) and ground SBEA (GSBEA) on sulphate attack resistance on concrete in …

The effects of organic additives like grinding aids on the kinetics of cement hydration, morphology of cement hydrates as well as on the macroscopic properties such as superplasticizer demand ...

Secondly, though widely used in cement products containing limestone powder, the applicability of wet grinding of enhancing the activity of lime mud was still uncertain. The effect of surface modification and particle refinement of lime mud on hydration was also unclear.

A comprehensive research project was undertaken to evaluate the effect of specific energy consumption (Ec) on variations of portland cement fineness measured by the Blaine test and sieve analysis. Amine and glycol-based grinding aids (GA) were incorporated at various concentrations of 0.04, 0.06, and 0.08% of the cement weight. …

Diamond grinders use several grinding heads designed for the variations in concrete surfaces to ensure you get a proper surface profile that lasts a lifetime. Acid etching is a better option than power washing but it doesn't give the same results as grinding. Anyone with a decent commercial floor paint product and a little DIY skill can …

Here's when to acid wash or grind, when not to, and how to do concrete etching by grinding or by acid wash.

The extensive usage of cement in almost all infrastructure projects will affect the health of construction industry around the world. At present, the entire globe is marching towards sustainable, eco-friendly and energy efficient infrastructure development with economic viabilities. The research elucidates the effect of grinding of Fly Ash (FA) and …

The aim of this paper is to illuminate the impacts of cement production emissions on the environment. Various research work has shown that countries in sub-Saharan Africa, suffer the most from environmental pollution especially air pollution. One of such contributing factors is the behavioural pattern of workers and traders living close to …

A molecular modified PCE-type GA was self-synthesized, and the grindability concerning grinding duration and particle size distribution of ground cement was evaluated. Setting time, flowability, hydration heat, mechanical properties and microstructure of the ground cement were also investigated. The results show that: PCE …

The effect of PC and its compound with triethanolamine (TEA) and triisopropanolamine (TIPA) on cement particle size and strength, and hydration process and structures of hydrated products were investigated. Moreover, the grinding mechanism of grinding aids was also proposed.

This could be explained by the pozzolanic reaction of the zeolitic by-product. The complex chemical reactions of cement, zeolitic by-product, and fines presented in the concrete wash water occurred.

Assaad and Issa compared the effect of grinding aids based on triethanolamine (TEA) and glycol (GLI) in different variants [7]. They investigated the impact of these additives on variations in the flow of cement pastes, including static …