Шлифовка сверхтонких Ggbs

粒化高爐礦渣粉混凝土 Development Bureau

2021年4月21日  本文介紹了香港一個高性能低碳GGBS混凝土的案例研究，探討了GGBS混凝土在可持續發展方面的優勢和挑戰。文中還分析了GGBS混凝土在抵抗青衣北部火山骨料引起的ASR方面的效果。本文是2022年混凝土研討會的其中一篇論文，歡迎有興趣的讀者

Influence of geopolymer aggregates on microstructural and

Ground Granulated Blast Furnace Slag SpringerLink

2011年1月1日  Ground granulated blast furnace slag (GGBS) is a byproduct from the blastfurnaces used to make iron Blastfurnaces are fed with controlled mixture of ironore,

Effect of relative GGBS/fly contents and alkaline solution

2022年4月4日  The effect of relative contents of GGBS and fly ash on mortar response was evaluated by creating three sets of mortars using: (1) GGBS as sole binder (G100), (2)

Glass structure of industrial ground granulated blast

2021年9月7日  Ground granulated blast furnace slags (GGBS) are glassy byproducts from iron production that are commonly used as supplementary cementitious materials in

Sustainable ternary cement blends with highvolume ground

2021年7月9日  The use of GGBS blended concrete was also extensively assessed; although the production of GGBS had higher environmental impact than fly ash, the

Synthesizing superhydrophobic ground granulated blast

2018年12月10日  This paper studies the feasibility of synthesising superhydrophobic ground granulated blast furnace slag (GGBS) as waterresisting admixture in lightweight

Setting Time, Workability and Strength Properties of Alkali

2021年2月11日  In general, GGBSbased geopolymer concrete is well known for its rapid setting behavior, but the use of neutral grade water glass as activator in the present

粒化高炉矿渣微粉固化淤泥质土的动力特性及微观机理

2021年2月2日  摘要： 采用不同掺量的粒化高炉矿渣微粉 (GGBS)对淤泥质土进行固化处理,利用动三轴试验,确定GGBS的最优掺量,并分析最优掺量固化土在不同围压下的动强度、

Synthesizing superhydrophobic ground granulated

(GGBS) as waterresisting admixture in lightweight aggregate concrete The superhydrophobic GGBS was produced through a ball milling method using the low cost

粒化高炉矿渣微粉固化淤泥质土的动力特性及微观机理

2021年2月2日  摘要： 采用不同掺量的粒化高炉矿渣微粉 (GGBS)对淤泥质土进行固化处理,利用动三轴试验,确定GGBS的最优掺量,并分析最优掺量固化土在不同围压下的动强度、动弹性模量和动阻尼比的变化规律,最后利用SEM和EDS分析固化土的微观结构和元素变化,揭示其

Ecological Upgrade of NormalStrength Mortars

2020年6月22日  Figure 2(a) shows the XRD patterns of 3 d pastes incorporating 0% or 70% to 90% GGBS cured at 23°C with the fixed = 045 Among the ten identified substance, hydrocalumite with the characteristic

Solidification/stabilization of coppercontaminated soil using

2023年1月25日  Reutilization of GGBS in soil stabilization is one of the sustainable ways to mitigate the environmental concerns associated with its disposal GGBS is activated using a variety of activators such as quick lime, cement, caustic alkalis, and water glass Activators are blended with soilpozzolanic material mixtures to increase the pH of the

Mechanical and durability properties of metakaolin

2021年4月26日  The low proportion of GGBS resulted in the formation of a discontinuous phase that reduced strong shrinkage caused by weight reduction (0019% and 0025% for 10% and 20% GGBS replacement, respectively, at 28 days) When the percentage of GGBS was high, these particles gradually created a continuous gelatinous network with a low

Study on the optimization and performance of GFC soil

2023年4月1日  Fig 2 shows XRD patterns of the GGBS, FGDG, CCS and CCS As shown in Fig 2, the structure of the GGBS was amorphous, which means high pozzolanic activity (Zhou et al, 2021)The FGDG contained mainly plaster (CaSO 4 2H 2 O) and calcium carbonate (CaCO 3); CCS contained two main minerals: (Ca(OH) 2), calcium carbonate

Preparation and validation of sustainable metakaolin based

2023年3月31日  Strength development and enhancement of geopolymerization rate depends on the Si/Al ratio and cure condition at which the specimens have been produced Because the silicates in GGBS were used to make CA S H, the GGBS dissolves more quickly, which speeds up the geopolymerization reaction and helps to sustain the

Durability Properties and Microstructure of Ground

2014年5月20日  The characteristic of GGBS was examined using particle size analyzer, Xray diffraction (XRD) and chemical analysis tests Table 1 shows the physical and chemical properties, whereas Figs 1 and 2 show the particle size distribution and XRD test result of the GGBS respectively The average particle size of GGBS was 92 μm compared to

Carbonated ground granulated blast furnace slag stabilising

2021年6月4日  Proposals have been made by several researchers to conduct the sequestration of carbon dioxide (CO2) through calcium and magnesiumrich materials From these materials, ground granulated blast furnace slag (GGBS) containing 5% magnesium and 45% calcium is seen to be a good candidate and is available to sequester CO2 This

Investigation of the rheology and strength of ScienceDirect

2018年11月1日  As can be seen in Fig 2, both FA and SF particles possessed a spherical morphology, whereas GGBS was made up of angular particlesXray diffraction (XRD) patterns of FA, GGBS and SF are shown in Fig 3Broad humps at 1828° 2Theta in FA, 25–35° 2Theta in GGBS and 1822° 2Theta in SF indicated the amorphous phases

Synthesizing superhydrophobic ground granulated blast

2018年12月10日  The mass loss of coated GGBS sample in the range of 200–450 °C is attributed to the oxygenolysis of stearic acid on the surface of the superhydrophobic slag [17], as shown in Fig 7 a The weight loss of superhydrophobic slag is 12% higher than the milling slag that is in line with the theoretical value (1%), confirming again the

Strength evolutions of varying water contentdredged

2021年3月15日  The GGBS content was fixed at 20%, and the single activator content was designed to be 5, 10, 15 and 20% by the GGBS weight The composite activators composed of Na 2 SiO 3 and NaOH, was fixed at 15% by GGBS weight, and the mass ratios of Na 2 SiO 3 to NaOH were determined to be 1:4, 2:3, 3:2 and 4:1 The water contents of 60, 70

Comparison of reactive magnesia and carbide slag

2015年7月1日  MgO was obtained from Meishen Chemical Co Ltd, Xintai, China GGBS, CS, and PC (type 325 according to CBMA (China Building Materials Academy) (2008)) were local materials in Nanjing, China, and were obtained from Nanjing Iron Steel Group Corp, Weisheng Gas Co Ltd and Yuhua Cement Co Ltd, respectivelyThe chemical

Sustainability Free FullText A Comprehensive

2022年7月18日  In the last few decades, the concrete industry has been massively expanded with the adoption of various kinds of binding materials As a substitute to cement and in an effort to relieve ecofriendly difficulties

Glass structure of industrial ground granulated blast

2021年9月7日  Ground granulated blast furnace slag (GGBS) is a glassy byproduct of hot metal production and has been used in blended cements for over 140 years [1,2,3,4]GGBScontaining binders and concretes have a lower CO 2 footprint, show a decreased heat development and an increased physical and chemical resistance [1, 3, 5,6,7,8]At high

Mechanical Strength and Microstructure of GGBSSCBA

2023年5月1日  The results in this current study shows the geopolymer concrete developed with 20% SCBA and 80% GGBS with 8M NaOH solution and SS/SH ratio 25 can be used for a target strength of 30–35 MPa 4 Regression analysis revealed a strong correlation between the proposed model equations and experimental data 5

Development of artificial onepart geopolymer

2021年9月15日  The chemical compositions of FA, GGBS and cement determined by Xray Fluorescence (XRF) test are shown in Table 1According to ASTM C61819 (ASTM C618 19, 2019), the FA in this study was Type F fly ash, in which the total content of SiO 2, Al 2 O 3 and Fe 2 O 3 (7949%) was higher than 50% while the CaO content (914%) was less

地聚合物混凝土配比及力学性能研究

2021年6月30日  Verma et al（2021） 研究了磨细矿渣和粉煤灰配比及养护条件对地聚合物混凝土力学性能的影响。 Ghafoor et al（2020） 考察了NaOH浓度、Na 2 SiO 3 /NaOH比例、碱激发剂和粉煤灰比例对常温固化地聚合物混凝土力学性能的影响。 但上述学者仅讨论了不同影响因素对地

Studies on the Compressibility and Shear Strength Behaviour

2021年4月9日  This paper investigates on the mechanical characteristics (compressibility and shear strength) of fly ash/groundgranulated blastfurnace slag (GGBS) mixtures at various mix ratios using consolidation and direct shear tests, respectively The consolidation studies were done at a reduced duration of load increment The compressibility

Improving the Geotechnical Properties of Silty Sands by Using GGBS

2022年5月14日  The laboratory output of Silty sands admixed with GGBS and reinforced with coir fibres is investigated in this paper The Silty sands have been considered by using percentages of GGBS such as 5, 10, 15, 20% and 2, 4, 6, 8% of coir fibres The optimum values increased at 15% of GGBS and 6% of coir fibres, and the effect of curing time was

(PDF) Effect of GGBS and Curing Temperature on

2017年4月18日  The results revealed that inclusion of GGBS as a partial replacement to fly ash (FA) in geopolymer mortar, which is cured in ambient curing condition, can be able to achieve required setting time

Improvement in field applicability of concrete using fly ash

2022年3月22日  The engineering capabilities of AlkaliActivated Concrete (AAC) are superior to those of Ordinary Portland Cement (OPC)based concrete Fly ash and Ground Granulated Blastfurnace Slag (GGBS) are readily available as industrial waste and are commonly used as raw materials for AAC The objective of this study is to formulate an

Mechanisms of hydrogen sulfide removal by ground

2017年5月1日  Ground granulated blast furnace slag (GGBS) amended soil has been found able to remove gaseous hydrogen sulfide (H 2 S) However, how H 2 S is removed by GGBS amended soil and why GGBS amended soil can be regenerated to remove H 2 S are not fully understood In this study, laboratory column tests together with chemical

Effects of epoxy resin on groundgranulated blast furnace slag

Keramatikerman et al investigated the effect of GGBS and lime binder on the engineering properties of clay at different curing periods In their study, a mixture of GGBS and lime mixed with clay showed a significantly higher compressive strength for all curing age 25 Yi et al studied the stabilization of alkaliactivated GGBS for marine soft

Designing lowcarbon cementfree binders for stabilization

2023年8月1日  In summary, the formation of Ca(Zn(OH) 3) 2 2H 2 O or 2PbOSiO 2 in the CaOGGBS system retarded the hydration process, resulting in an insufficient immobilization efficiency and low compressive strength On the contrary, the MgOGGBS system showed a high compatibility with PTEs, allowing for a good and reliable S/S performance 34

Buildings Free FullText Comparison of Two Sulfate

2022年12月4日  Sulfatebearing soils, which causes many engineering problems, eg, cracking, collapse, and pavement layer settlement, are often encountered in the construction of pavements Ground granulated blast furnace slag (GGBS)magnesia (MgO) has been regarded as an effective curing agent in the treatment of sulfatebearing soil containing

Durability Studies on Fly Ash Based Geopolymer Concrete

2022年2月20日  The proportions of coarse aggregate, superplasticizer, and alkaliactivated solutions used in the geopolymer concrete mixes were 1189 kg/m 3, 38 kg/m 3, and 171 kg/m 3, respectivelyThe coarse aggregate and water used in the conventional concrete mix were 1189 kg/m 3 and 171 kg/m 3, respectivelyFrom Table 3, it is observed that G20M0

Correlation of microstructural and mechanical

2018年12月10日  FA was replaced with GGBS at 30, 40, 50, 60, 70 and 100% by mass ratios, which caused an increase in SitoAl ratio For the majority of the mixtures (up to 60% of GGBS) the SitoNa 2 O ratio was kept constant However, for the mixtures with 70% and 100% slag the low workability required a higher addition of the liquid component

Deep insight into mechanical behavior and ScienceDirect

2022年11月1日  The number of amorphous GGBS particles and pores decreased under the quicklime proportion of 005–015, while the portlandite increased as the quicklime content changed from 015 to 03 Overall, the quicklimeGGBS binder could provide a potential sustainable construction material in waste recycling and freshwater saving

Application of molten iron desulfurization slag to replace

2022年12月1日  GGBS is widely used as a cement mixture, and its price is about 60% of that of cement (Nie et al, 2022) FGDG is used to adjust the setting time of cement Moreover, DS and SS are solid wastes that are difficult for steel mills to dispose of, so their prices are low or even free (Xu et al, 2021a) In China, the prices of the raw materials are