Gangue burnt rock as cement additive
Safe and environmentally friendly use of coal gangue in C30
2024年4月1日 Industrial solid waste coal gangue (CG) is used as the research object, and the mechanical activationwater washing pretreatment method was used to explore the feasibility 2022年9月30日 Coal gangue can be processed into ceramsite concrete by the above method, which solves the problem of solid waste treatment and alleviates the shortage of concrete raw Preparation of coal gangue ceramsite highstrength concrete and This study aims to minimize the carbon emissions of cement and investigate the viability of employing activated coal gangue (CG) as an additional cementitious ingredientStudy on the effect of activated coal gangue on the mechanical 2013年12月1日 The experimental results show that the compressive and flexural strength of the cementbased material with the calcined CG aggregates is much higher than that of the (PDF) Effects of Surfaceactivated Coal Gangue ResearchGate
Effects of surfaceactivated coal gangue aggregates on properties
2013年12月12日 The experimental results show that the compressive and flexural strength of the cementbased material with the calcined CG aggregates is much higher than that of the 2018年8月10日 The study is intended to provide a comprehensive explanation of the increased extent of the burnt rock activity, develop a technology for its use as an active mineral additive Use of the burnt rock of coal deposits slag heaps in the concrete In order to improve the resource utilization rate of coal gangue, this paper takes advantage of the ‘overlapping effect’, ‘microaggregate filling effect’ and ‘volcanic ash effect’ of fly ash (FA) and Study on the Modification Effect and Mechanism of a Compound 2021年8月1日 This paper studies the effect of calcination processes at 450 °C and 750 °C on the mineral and chemical compositions, microstructure and suitability of coal gangue as Valorization of calcined coal gangue as coarse aggregate in concrete
(PDF) Acoustic emission investigation of coal gangue
2022年10月1日 A material known as coal gangue cementitious composite (CGCC), which is made of coal gangue, cement, and additives among other things, is frequently used in the field of coal backfilling mining to 2022年5月10日 This research is about utilization of waste material as construction material This study mainly focuses on the effects of rice husk ash (RHA) as partial replacement to ordinary Portland cement to (PDF) Incorporating Rice Husk Ash (RHA) as partialThe benefit of the burnt rock as an active mineral additive, compared to the fly ash used by the cement plants, was confirmed as well The optimal ratio of cement and burnt rock in concrete b: Scanning Electron Microscopy (2000X) of the Crystaloptical studies of the burnt rock as well as the cement stone with the burnt rock additive were performed with a digital polarizing microscope Altami Polar 1 Xray diffraction analysis was conducted to study the phase composition of the burnt rock, with the help of the Shimadzu Xray diffractometer XRD7000Burnt rock of the coal deposits in the concrete products
Study on the effect of activated coal gangue on the mechanical
as cement mineral additive The coal gangue was finely grounded by the vertical planetary mill (YXQM4L) for better activity The rotation speed is set to 600r/min, and the grinding time is 30min2023年12月1日 Cement additives play a crucial role in enhancing various aspects of cement performance, including strength, durability, workability, and setting timeAdvancements in Cement Technology: A Comprehensive Review of Additives 2017年1月1日 The benefit of the burnt rock as an active mineral additive, compared to the fly ash used by the cement plants, was confirmed as well The optimal ratio of cement and burnt rock in concrete Burnt rock of the coal deposits in the concrete products 2021年3月8日 The cement with 30% (in mass) the gangue exhibits higher mechanical strength, and among all the cement samples the one with the gangue burnt at 700 °C displays the highest hydration rate EFFECTS OF COAL GANGUE ON THE SULFATE ATTACK RESISTANCE OF CEMENT
Mechanical and Acoustic Emission Behavior of Gangue
2019年10月11日 A material known as coal gangue cementitious composite (CGCC), which is made of coal gangue, cement, and additives among other things, is frequently used in the field of coal backfilling mining to Preparation and application of alkaliactivated materials based on waste glass and coal gangue: A review Mohamad Jamali Moghadam, Alborz Hajiannia, in Construction and Building Materials, 2019 4 Coal gangue (CG) CG is a complex solid waste left in the process of coal mining which produces one of the largest amounts of industrial wastes in the worldGangue Mineral an overview ScienceDirect Topics2005年6月1日 The composition of coalgangue and the phase change procedure of calcinations activation were analyzed in this paper by Fourier transformation infrared spectrometer (FTIR) and infrared microscopeInfrared spectrum analysis of thermal activation of coalgangue 2023年5月10日 This study aims to minimize the carbon emissions of cement and investigate the viability of employing activated coal gangue (CG) as an additional cementitious ingredientStudy on the effect of activated coal gangue on the mechanical
Use of the burnt rock of coal deposits slag heaps in the concrete
2018年8月10日 The benefit of the burnt rock as an active mineral additive, The optimal ratio of cement and burnt rock in concrete mixtures was determined experimentally coal gangue from southern 2014年8月1日 The cement with 30% (in mass) the gangue exhibits higher mechanical strength, and among all the cement samples the one with the gangue burnt at 700 °C displays the highest hydration rate Influence of coal gangue fine aggregate on microstructure of cement By using SikaGrind® CC (calcined clay) additives in the production of CC cement or LC 3 (limestone calcined clay cement), it can possibly reduce the amount of clinker used per ton of cement and increase use of calcined clays (which require a lower burning temperature than traditional clinker)Cement Additives Sika2024年11月12日 This study investigates the mechanical properties and damage evolution of fiberreinforced coal gangue cemented materials (CGCMs) at various curing times using uniaxial compressive tests, acoustic Comparison of Different Additives and Ages on Mechanical and
A StateoftheArt Review on Suitability of Granite Dust as a
2021年12月7日 Influence of the granite dust dosage on the compaction characteristics S1: 75% soil + 25% granite dust; S2: 50% soil + 50% granite dust; and S3: 25% soil + 75% granite dust (Modified after [45])As a result, cement composites with rock dust additive feature higher strength Aside from the physical influence of stone dust on the cement matrix microstructure, other phenomena also occur The rock dust grain surface is mainly the active center, which leads to the improvement of the properties and durability of cement composites from which heteronuclei of the CSH Influence of Rock Dust Additives as Fine Aggregate Replacement The benefit of the burnt rock as an active mineral additive, compared to the fly ash used by the cement plants, was confirmed as well The optimal ratio of cement and burnt rock in concrete Illustration of a typical cement manufacturing process2016年1月1日 Abstract Additives play significant role in oil and gas well cementing operations There are varieties of cement additives that have been developed to allow the use of Portland cement in many Oil Well Cement Additives: A Review of the Common Types
The performance of autoclaved aerated concrete prepared by
2024年8月30日 China's annual output of raw coal was about 35–4 billion tons, and the annual discharge of coal gangue, an industrial solid waste with a large discharge and low utilization rate, from coal mining and coal preparation was about 500–800 million tons [1], [2], [3], [4]Accumulation and landfills are common ways to treat coal gangue, but these methods lead 2022年1月17日 In this paper, paste mixed with coal gangue, fly ash, cement, and additives is used to investigate the influence of three airentraining agents (AEAs) (including sodium dodecyl sulfate (SDS Rheology control of selfconsolidating cementtailings grout for 31 Features of Mineral Composition The objects of study of this work are burnt mine rocks and ashslag wastes (ash of dry selection and with slag mixture) In several papers, the authors observed that the ash and slag are largely identical to that of natural mineral raw materials on the chemicalmineralogical, granulometric and phasemineralogical composition [9,10,11,12,13]Mineral Additives from Technogenic Raw Materials2023年10月31日 Coal gangue is a sedimentary rock material associated with coal seams in the process of coal mining and coal washing Because of its low carbon content and poor strength, itStudy on the Modification Effect and Mechanism of a Compound
Environmental characterization of burnt coal gangue banks at
2008年7月1日 Request PDF Environmental characterization of burnt coal gangue banks at Yangquan, Shanxi Province, China The environmental characteristics of coal gangue dumps in Yangquan (Shanxi Province 2020年8月27日 SEM images of two different types of sugar cane bagasse ash Reprinted with permission from the authors of [50] (a) SCBAB (b) SCBAA (PDF) The Utilization of Agricultural Waste as AgroCement in 2023年11月21日 In order to improve the oil displacement effect of alkali/surfactant/polymer (ASP) solution in lowpermeability oil layers, Daqing Oilfield has proposed a separate injection technologyAn alternative approach to improve the compatibility of PCE in cement 2013年3月1日 Added carbon powder or M mineral powder in unburned kaolinite coal gangue, the mixtures could be changed better expansive mineral additive of Portland cement by microwave irradiationOn Study of Development Expansive Coal Gangue Portland Cement
Study on the Modification Effect and Mechanism of a Compound
Coal gangue is a sedimentary rock material associated with coal seams in the process of coal mining and coal washing Because of its low carbon content and poor strength, it has become one of the largest industrial solid wastes in China [], and the annual output is as high as more than 700 million tons []Heavy metal elements such as Pb, Sn and As released by large accumulations 2022年10月1日 A material known as coal gangue cementitious composite (CGCC), which is made of coal gangue, cement, and additives among other things, is frequently used in the field of coal backfilling mining to (PDF) Acoustic emission investigation of coal gangue 2022年5月10日 This research is about utilization of waste material as construction material This study mainly focuses on the effects of rice husk ash (RHA) as partial replacement to ordinary Portland cement to (PDF) Incorporating Rice Husk Ash (RHA) as partialThe benefit of the burnt rock as an active mineral additive, compared to the fly ash used by the cement plants, was confirmed as well The optimal ratio of cement and burnt rock in concrete b: Scanning Electron Microscopy (2000X) of the
Burnt rock of the coal deposits in the concrete products
Crystaloptical studies of the burnt rock as well as the cement stone with the burnt rock additive were performed with a digital polarizing microscope Altami Polar 1 Xray diffraction analysis was conducted to study the phase composition of the burnt rock, with the help of the Shimadzu Xray diffractometer XRD7000as cement mineral additive The coal gangue was finely grounded by the vertical planetary mill (YXQM4L) for better activity The rotation speed is set to 600r/min, and the grinding time is 30minStudy on the effect of activated coal gangue on the mechanical 2023年12月1日 Cement additives play a crucial role in enhancing various aspects of cement performance, including strength, durability, workability, and setting timeAdvancements in Cement Technology: A Comprehensive Review of Additives 2017年1月1日 The benefit of the burnt rock as an active mineral additive, compared to the fly ash used by the cement plants, was confirmed as well The optimal ratio of cement and burnt rock in concrete Burnt rock of the coal deposits in the concrete products
EFFECTS OF COAL GANGUE ON THE SULFATE ATTACK RESISTANCE OF CEMENT
2021年3月8日 The cement with 30% (in mass) the gangue exhibits higher mechanical strength, and among all the cement samples the one with the gangue burnt at 700 °C displays the highest hydration rate 2019年10月11日 A material known as coal gangue cementitious composite (CGCC), which is made of coal gangue, cement, and additives among other things, is frequently used in the field of coal backfilling mining to Mechanical and Acoustic Emission Behavior of Gangue Preparation and application of alkaliactivated materials based on waste glass and coal gangue: A review Mohamad Jamali Moghadam, Alborz Hajiannia, in Construction and Building Materials, 2019 4 Coal gangue (CG) CG is a complex solid waste left in the process of coal mining which produces one of the largest amounts of industrial wastes in the worldGangue Mineral an overview ScienceDirect Topics