تُستخدم كسارة الفك PEW في الغالب لإنتاج قطع كبيرة من الخام، مع حجم جزيئات التغذية: 0-720 مم.
اقرأ المزيد
تستخدم كسارة التأثير PFW في الغالب لمعالجة الصخور اللينة، وحجم جزيئات التغذية هو: 0-350 مم.
اقرأ المزيد
تستخدم كسارة المخروطية HST في مرحلة التكسير المتوسطة للصخور الصلبة، مع حجم جزيئات التغذية: 0-560 مم.
اقرأ المزيد
مزودة بمحطات تكسير خشنة ومتوسطة ودقيقة أكثر كفاءة، ومحطات متنقلة لتشكيل الرمل والغربلة، وتغطي القدرة الإنتاجية 100-500 طن/ساعة.
اقرأ المزيد
32;Fly ash (FA) is the principal industrial waste byproduct from the burning of solid fuels. FA is a powdery solid that is constituted mostly of unburned carbon (UC), metal oxides (Si, Fe, Ca, and Al), and other inorganic substances. UC is an inexpensive source of activated carbon that plays an important role in FA adsorption capacity.
سؤال
32;In order to achieve the goal of effectively utilizing solid waste resources and improving mining stability, it is necessary to incorporate various types of solid wastes in the production of cemented backfill. For investigating the compressive strength and damage characteristics of Cement–Fly Ash–Slag–Gangue (CFSG) cemented backfill under
سؤال
32;Low-calcium (Class F) fly ash and ground granulated blast-furnace slag were used as precursors, the chemical compositions of which characterised using X-ray fluorescence spectrometry (XRF) are given in Table 1.The particle size distribution of fly ash and slag is presented in Fig. 1.As per the previous studies [39, 40], a mixture of 10 M
سؤال
32;Environmental contamination can be avoided by producing sustainable concrete using innovative technology like self-compacting concrete (SCC) with various industrial wastes. In this study, an experimental investigation was carried out on SCC through Taguchi design. The parameters considered in the design of the experiment
سؤال
32;1. Introduction. Since the 1970s, alkali-activated materials have become a worldwide endeavor as a green alternative to ordinary Portland cement (OPC) due to their high mechanical properties and environmental friendliness [1].Alkali-activated materials are widely appreciated, due to their remarkable mechanical properties including high
سؤال
32;Engineered cementitious composites (ECCs) are a special class of ultra-ductile fiber-reinforced cementitious composites containing a significant amount of short discontinuous fibers. The distinctive tensile strain-hardening behavior of ECCs is the result of a systematic design based on the micromechanics of the fiber, matrix, and fiber–matrix
سؤال
32;To promote the widespread use of fly ash (FA) and coal gasification slag (CGS) in mine filling, reducing the amount of cement and promoting the sustainable development of mining enterprises are essential. In this study, decarbonized CGS (DCGS) was prepared from CGS through decarbonization. A new DCGS-FA filling material was
سؤال
32;Composites that use fly ash and slag as alkali-activated materials instead of cement can overcome the defects and negative effects of alkali-activated cementitious materials prepared with the use of an alkali-activated material. In this study, fly ash and slag were used as raw materials to prepare alkali-activated composite cementitious materials.
سؤال
32;1. Introduction. Concrete remains the most popular construction material [60], and its use is expected to continue in the years to come.One significant advantage of concrete is the cost-effectiveness of its constituent materials, rendering it an ideal choice for mass production [34] and broad-ranging applications.Concrete's appeal further stems
سؤال
32;Current demand for highly sustainable concrete, e.g. alkali-activated fly ash-slag (AAFS) concrete, urges understanding the links between microstructure and micromechanical properties of this binder. This paper presents a systematic investigation into the microstructure and micromechanical properties of AAFS paste from nano-scale
سؤال32;1. Introduction. Low-strength soil layers are frequently encountered in road construction, and they have a significant impact on various phases of construction design [1,2,3].Another issue in civil engineering is clayey soil [4,5].Clayey soil is a global issue, causing several difficulties for civil engineers, building enterprises, and property owners
سؤال
32;Feature papers represent the most advanced research with significant potential for high impact in the field. A Feature Paper should be a substantial original Article that involves several techniques or approaches, provides an outlook for future research directions and describes possible research applications.
سؤال
32;Benign design of alkali-activated slag/FA geopolymer paste has attracted increasing attention for optimizing its service performance. Therefore, the replacement of fly ash (FA) with 10 wt% silica fume (SF) is investigated by mechanical strength after freeze–thawing cycles and microstructure characterization. The results show that an
سؤال
32;Cement production consumes large amounts of depleted resources and energy, and causes environmental pollution. In order to reduce cement consumption and realize the closed-loop recycling of solid waste, cold bonded solid waste wrap-shell lightweight aggregates (SWSLAs) with a sextuplet blended system composed of dredged
سؤال32;Slag is a byproduct that results from the smelting process of various ores, such as iron, copper, and lead. When these ores are heated to extract the desired metal, slag is formed as molten, which is later cooled and solidified. On the other hand, fly ash is a byproduct of burning pulverized coal in power plants.
سؤال
32;It is evident from Table 2 that the compressive strength and 2-h consistency-loss ratio of the mortar prepared from industrial solid waste were slightly inferior to those of commercial mortar but still met the requirements of the national standard GB/T 25181-2010. There were no significant differences in the setting times and water
سؤال
32;Recycled concrete is a material with the potential to create a sustainable construction industry. However, recycled concrete presents heterogeneous properties, thereby reducing its applications for some structural purposes and enhancing its application in pavements. This paper provides an insight into a solution in the deformation control for
سؤال
The present study investigates the combined capacity of a newly developed slag-blended cement (MC) and fly ash (FA) as a sustainable solution towards improving the mechanical performance of the cemented paste backfill (CPB) system of a copper-gold underground mine. A total of thirteen mix designs consisting of three MC-treated and ten MC + FA
سؤال
32;In order to reduce stormwater runoff, permeable brick was prepared by compounding with fly ash and steel slag as the main substrate. The study found that the amount of steel slag has a significant influence on the compressive strength of permeable brick. When the proportion of steel slag is 6.5%, the compressive strength of permeable
سؤال
PDF | On Jul 4, 2016, K. Arbi and others published DURABILITY OF ALKALI-ACTIVATED FLY ASH AND SLAG CONCRETE | Find, read and cite all the research you need on ResearchGate
سؤال32;In this study, “alkali-activated slag concrete” (AASC) and “alkali-activated slag–fly-ash concrete” (AASFAC) were developed which was then related with OPC concrete of alike design grade. GGBS and fly-ash were used in the mix, in ratio 100:0, 75:25, 50:50, and 25:75 as the binder ingredient. The modulus of alkaline activator was
سؤال
With cement being the costliest ingredient, substituting fly ash or slag can help maintain a stronger mix at a lower cost. Fly ash and Slag will typically be 18% cheaper than Portland cement. When a mix includes 20% fly ash, this will provide savings of 3.5% in cost. The advantage of slag is its ability to substitute more of cement.
سؤال
32;In the present scenario, there is a huge requirement of quality concrete for paver applications. The production of green and sustainable concrete has become a must to substitute the ordinary Portland cement (OPC) concrete. It is an eminent fact that the manufacture of OPC requires the burning of its raw materials which lead to a huge
سؤال
32;The results showed the following: (1) Optimized formulation could be achieved at coal gangue powder: slag: fly ash ratio of 5:4:1, 1.64 M sodium silicate modulus, 6.7% sodium silicate and 5% Na 2 O. The LCGGM possesses clean production, high fluidity, fast setting, low bleeding rate, high compressive strength and seepage pressure,
سؤال
32;In response to the high carbon emissions and energy consumption of traditional cement curing agents, in this paper, we propose a fly ash/slag-based geopolymer as an alternative to cement for stabilizing
سؤال
32;The FA and GGBS were provided by a material enterprise in Zhengzhou and Gongyi (Henan, China), respectively. The particle densities of FA and GGBS were 2.42 and 2.93 g/cm 3, which were measured referred to the Chinese Standards GB/T 208–2014 [43], The chemical compositions were listed in Table 1 and the mineral phase of FA and
سؤال
:Concrete and CementCivil EngineeringEffect of Fly Ash On ConcreteChina: Lushan Conch has completed preparation for a project to use slag and fly ash. The subsidiary of Anhui Conch said that it has completed transport bidding work and had
سؤال
[PDF]B. Meeting the 7 or 28-day strength activity index will indicate specification compliance. C. If the mineral admixture will constitute more than 20 % by weight of the cementitious material in the project mix. design, thetest specimens for autoclave expansion shall contain that anticipated percentage.
سؤال
32;Geopolymer, as a new type of solid waste-based inorganic cementitious material, exhibits outstanding behavior in terms of physical and chemical performance, macromechanical properties, long-lasting stability, and features potential application development tendency in the field of repair and reinforcement of existing concrete
سؤال
[PDF]Fly ash, ground granulated blast-furnace slag, silica fume, and natural pozzolans, such as calcined shale, calcined clay or metakaolin, are materials that, when used in conjunc-tion with portland or blended cement, contribute to the properties of the hardened concrete through hydraulic or pozzolanic activity or both (Fig. 3-1).
سؤال
تتمتع شركتنا بتاريخ يمتد لأكثر من 30 عامًا وشكلت تدريجيًا نظامًا كاملاً للبحث والتطوير والإنتاج والمبيعات والخدمة لتلبية احتياجات الإنتاج للمستخدمين بشكل أفضل.
آلة تكسير الحصى بقدرة 45-1200 طن/ساعة بسعر مناسب، يرجى الاتصال بنا إذا لزم الأمر.
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