hydration of portland cement with red mud as mineral

Leave Comment

Hydration of Portland cement with red mud as mineral ...

10%  Nov 07, 2017  Hydration of Portland cement with red mud as mineral addition. R. C. O. Romano 1, H. M. Bernardo 1, M. H. Maciel 1, R. G. Pileggi 1 M. A. Cincotto 1 Journal of Thermal Analysis and Calorimetry volume 131, pages 2477–2490 (2018)Cite this article

Get price

Hydration of Portland cement with red mud as mineral ...

Oct 28, 2017  Hydration of Portland cement with red mud as mineral addition. por cesar 28/10/2017. ... This work was aimed at evaluating the impact from partial substitution of Portland cement for different contents of red mud collected in an alumina production plant in the northeast of Brazil. The hydration reaction was monitored by isothermal conduction ...

Get price

Red mud addition in the raw meal for the production of ...

Dec 10, 2004  The addition of red mud residue by 1% in the raw meal did not affect either the sintering or the hydration process during Portland cement production. More specifically, the sample with red mud presented the following characteristics: 1. The alite phase occurred as small well-formed crystals. 2.

Get price

USE OF RED MUD AS ADDITION FOR PORTLAND CEMENT

Figure 2. X-ray diffraction (XRD) pattern of dried red mud. Effects on Mortar Fresh State Properties pH As shown previously, the high pH of red mud (12.5) is its main environmental problem. However, the use of materials with this feature is good when added to Portland cement matrices, such as mortar and concrete, since hydration reactions

Get price

Use of Red Mud as Addition for Portland Cement Mortars

Use of Red Mud as Addition for Portland Cement Mortars 2 conditions in order to minimize environmental problems such as soil contamination and groundwater pollution. Snars and Gilkes [6] verified that red mud is different although sets produced at different refineries from bauxite collected in the same deposit are quite similar.

Get price

USE OF RED MUD AS ADDITION FOR PORTLAND CEMENT

Figure 2. X-ray diffraction (XRD) pattern of dried red mud. Effects on Mortar Fresh State Properties pH As shown previously, the high pH of red mud (12.5) is its main environmental problem. However, the use of materials with this feature is good when added to Portland cement matrices, such as mortar and concrete, since hydration reactions

Get price

Rheological properties and hydration behavior of portland ...

References listed in 'Rheological properties and hydration behavior of portland cement mortars containing calcined red mud'. ... Li L.Y (2001), "A study of iron mineral transformation to reduce red mud tailings" in Waste Management, v. 21 n. 6, Elsevier BV, p. 525-534 ... "Potential use of natural red mud as pozzolan for Portland cement" in ...

Get price

Red Mud Addition in the Raw Meal for the Production of ...

Fig. 4. X-ray diffraction of Portland cement clinkers with and without red mud residue. The chemical analysis and the potential mineral com-position of the Portland clinkers produced are given in Tables 3 and 4, respectively. As the tables show, the addi-tion of the red mud residue by 3.5% did not seem to affect its mineralogical composition.

Get price

Hydration Properties of Cement with Liquefied Red Mud ...

An increasing amount of red mud (RM) is being generated globally due to the growth in aluminum production. To avoid RM pollution, low-cost methods for effectively recycling RM are being investigated. We propose a method for recycling RM as a construction material. Liquefied RM (LRM) was neutralized by nitric acid and added to cement paste, and the hydration heat, compressive strength, and ...

Get price

Hydration products of alkali-activated slag–red mud ...

Mar 01, 2002  Results of TG-DTA analysis on S1 hardened cement paste specimen cured at ambient temperature are shown in Fig. 3, Fig. 4, which show the similar features as those of hardened Portland cement paste system except for the additional exothermic effect between 200 and 600 °C probably being caused by the oxidation from ferrous oxide to ferric oxide existed in red mud.

Get price

Effect of Calcined Red Mud Addition on the Hydration of ...

The red mud (RM) is a solid waste derived from the processing of bauxite ore to produce alumina and it is considered a hazardous waste due to its high pH. This paper describes the use of mud untreated and after calcination at distinct temperatures (450, 650, and 1000°C) attempting to improve its reactivity. The Portland cement was replaced up to 30 wt% red mud, and its addition changed the ...

Get price

Arquivos Portland cement - Laboratório de Microestrutura e ...

Using isothermal calorimetry, X-Ray diffraction, thermogravimetry and FTIR to monitor the hydration reaction of Portland cements associated with red mud as a supplementary material 11/03/2019 The impact of vermiculite residual fines in the rheological properties of cement pastes formulated with different waste contents

Get price

Development of a pozzolanic pigment from red mud (Journal ...

Oct 01, 1997  The pozzolanic properties of calcined red mud were investigated by monitoring lime consumption of different mixtures of OPC and red mud. The main products of hydration were C-S-H and mono-carboaluminate (C{sub 4}A{bar C}H{sub 11}). A uniform and durable colored concrete was obtained using white cement interground with 11% of burnt red mud.

Get price

Mineral Co Ordinary Portland Cement

“Portland Cement History and its Development” Portland cement, definitely one of mankind’s most important manufactured materials, was invented and patented by Joseph Aspdin from Leeds in 1824. Aspdin produced cement by heating powdered limestone mixed with clay in a furnace, and grinding the resulting clinker to form it to powder.

Get price

Waste managementx - WASTE MANAGEMENT Overview \u2022 ...

• Red mud is also known as bauxite tailings, red sludge, bauxite residue and alumina refinery residues (ARR). Chemical composition : Components Percentage Composition (%) Fe 2 O 3 5-60 Al 2 O 3 5-30 TiO 2 0.3-15 CaO 2-14 SiO 2 3-50 Na 2 O 1-10

Get price

Environmentally sustainable use of sandstone slurry in ...

Jul 22, 2021  Dried sandstone slurry (DSS) is generated during mining and processing of stone and is accounted as man-made hazardous waste material, contaminating the environment in nearby areas. The use of DSS in self-compacting concrete (SCC) was studied by partially substituting pozzolana Portland cement at different percentages. This represents the recycling element of the 3 R’s of the environment ...

Get price

Avaliação Da Reatividade de Adições Minerais em Pasta de ...

The results presented indicate that the substitution of part of the cement with mineral additions reduces the hydration heat formed during the reaction of the cement with water. However, the red mud and the metakaolin presented an antecipation of the hydration heat.

Get price

NTU Theses and Dissertations Repository: 經由旋轉填充床進行碳

DC 欄位 值 語言; dc.contributor.advisor: 蔣本基(Pen-Chi Chiang) dc.contributor.author: Yi-Xuan Xiong: en: dc.contributor.author: 熊逸軒: zh_TW: dc.date ...

Get price

Rheological properties and hydration behavior of portland ...

References listed in 'Rheological properties and hydration behavior of portland cement mortars containing calcined red mud'. ... Li L.Y (2001), "A study of iron mineral transformation to reduce red mud tailings" in Waste Management, v. 21 n. 6, Elsevier BV, p. 525-534 ... "Potential use of natural red mud as pozzolan for Portland cement" in ...

Get price

Hydration Properties of Cement with Liquefied Red Mud ...

An increasing amount of red mud (RM) is being generated globally due to the growth in aluminum production. To avoid RM pollution, low-cost methods for effectively recycling RM are being investigated. We propose a method for recycling RM as a construction material. Liquefied RM (LRM) was neutralized by nitric acid and added to cement paste, and the hydration heat, compressive strength, and ...

Get price

Effect of Calcined Red Mud Addition on the Hydration of ...

Main Materials Science Forum Effect of Calcined Red Mud Addition on the Hydration of Portland Cement Materials Science Forum 2012 / 8 Vol. 727-728 Effect of Calcined Red Mud Addition on the Hydration of Portland Cement

Get price

Evaluation of blends bauxite-calcination-method red mud ...

Red mud is generated from alumina production, and its disposal is currently a worldwide problem. In China, large quantities of red mud derived from bauxite calcination method are being discharged annually, and its utilization has been an urgent topic. This experimental research was to evaluate the f

Get price

Properties of red mud blended with magnesium phosphate ...

Nov 10, 2020  The effect of red mud on the hydration products was analyzed by XRD and the results were shown in Fig. 8a. As can be seen, the main hydration products of MKPC are K-struvite and periclase. It can be observed that, the diffraction peaks of cancrinite decreases in the specimens of RM-KH 2 PO 4 compared with that of red mud.

Get price

Hydration Mechanism of Portland Cement Prepared from ...

Jan 01, 2016  The hydrates and hydration mechanism of this cement were analyzed and studied by means of the hydration heat analysis, X-ray diffraction (XRD) and the differential thermal gravity (DTG) analysis. The results of experiments show that the hydration mechanism is similar to ordinary Portland cement.

Get price

Environmental Safety Analysis of Red Mud-Based Cemented ...

In view of the potential hydration properties of red mud during sintering and com- bination, it can be used in the production of cement, bricks for building, glass, and special ceramics, as well as in additives or auxiliary materials for asphalt materials, roadbed ma-

Get price

Radioactive Element Distribution Characteristics of Red ...

May 04, 2018  Red mud was firstly used as a raw material in sintering field road cement. Then, the radioactive element distribution characteristics of red mud based field road cement (RFC) before and after hydration were comparatively investigated. The experimental results indicated that the specific activity of 226Ra and 232Th increased after sintering process from raw material to clinker, as a result

Get price

Evaluation of Concrete Strength By Partially Replacing ...

replacing the Portland cement by Red Mud and Fly Ash. Because of storing issues, the waste negatively affects the environment. To solve this problem, Portland cement was replaced upto 40% ( 20% red mud 20% fly ash ) by weight of cement. And evaluating its compressive strength and tensile strength of red mud fly ash concrete.

Get price

Evaluation of Concrete Strength by Partially Replacing ...

Red Mud in Cement Replacement:- Dicalcium silicate in red mud is also one of the main phases in cement clinker, and red mud can play the role of crystallization in the production of cement clinker. Fly ash is mainly composed of SiO 2 and Al 2 O 3 , thus can be used to absorb the water contained in the red mud improve the reactive silica content ...

Get price

Synergistic use of industrial solid wastes to prepare ...

Dec 20, 2020  The compressive strength of synthetic cement in 28 d was 29.3 MPa when gypsum content is 20 wt%. The total hydration heat output of synthetic cement was lower than ordinary Portland cement (OPC) and sulphoaluminate cement (SAC), and its early hydration behavior was better than that of SAC and OPC at the initial 11.8 h and 58.6 h, respectively.

Get price

Study on the Preparation and Fracture Behavior of Red Mud ...

Serious environmental pollution issues caused by the storage and exposure of large amounts of red mud (RM) and yellow phosphorus slag (YPS) have raised significant concerns. Red mud-yellow phosphorous slag-cement concrete (RM-YPS-CC) is prepared with 25% yellow phosphorus slag content (YPSC) and 10% red mud content (RMC) to replace a portion of the cement at the age of 28

Get price

Development of a pozzolanic pigment from red mud (Journal ...

Oct 01, 1997  The pozzolanic properties of calcined red mud were investigated by monitoring lime consumption of different mixtures of OPC and red mud. The main products of hydration were C-S-H and mono-carboaluminate (C{sub 4}A{bar C}H{sub 11}). A uniform and durable colored concrete was obtained using white cement interground with 11% of burnt red mud.

Get price

A State of the Art on Red Mud as a Substitutional ...

Jul 08, 2019  Red mud solids contain nearly 400g/L of water content, and this is the main drawback of red mud to use as raw material in the cement manufacturing process. Red mud based concrete enhance the strength at early ages because of rate hydration is more in the red mud

Get price
Contact us

Submit online

Please leave a message below and we will contact you as soon as possible.