We have 40 years of experience in mining machinery development and manufacturing

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Rotary Kiln

Rotary Kiln

Rotary kiln is also known as lime rotary kiln.

Product specification:Φ2.5×40m-Φ6.0×95m

Production capacity:168-10000t/h

Rotation speed:0.1–5 r/min

Applied materials: roasting cement clinker in the industries of metallurgy, refractory matter and chemical plant.

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Hot Crushers Brief Introduction

We are a professional mining machinery manufacturer, the main equipment including: jaw crusher, cone crusher and other sandstone equipment;Ball mill, flotation machine, concentrator and other beneficiation equipment; Powder Grinding Plant, rotary dryer, briquette machine, mining, metallurgy and other related equipment.If you are interested in our products or want to visit the nearby production site, you can click the button to consult us.

latest news

  • volcanic ash reduces the energy required to manufacture

    volcanic ash reduces the energy required to manufacture

    Volcanic Ash Reduces theEnergy Required to Manufacture Concrete. MIT engineers working with scientists in Kuwait have found that volcanic rocks, when pulverized into a fine ash, can be used as a sustainable additive in concrete structures. In a paper published online in the Journal of Cleaner Production, the researchers report that, by replacing a certain percentage of traditional cement with …

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  • is volcanic ash the key to stronger and greener concrete?

    is volcanic ash the key to stronger and greener concrete?

    Feb 15, 2018· Volcanic ash is largely considered a waste product and is in abundant supply and easily accessible in multiple locations around the world. Innormal concrete production,rocks such as limestone need to be removed from quarries and further crushed and heated at very high temperatures to be used in cement

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  • innovative and sustainable uses of volcanic ash as a

    innovative and sustainable uses of volcanic ash as a

    Mar 21, 2019· Mt. Mazama volcanic ash is plentiful at the ground surface in South-Central Oregon. If shown that Mt. Mazama volcanic ash has beneficial uses, and can replacePortland cementin some applications, there are potential economic and sustainability benefits for the region

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  • effect of volcanic ash pozzolan or limestone replacement

    effect of volcanic ash pozzolan or limestone replacement

    Feb 10, 2019· A recent work showed that replacing cement by smallersized volcanic ash (6 μm) enhanced microstructural development of the matrix through the formation ofsecondary C-S-H and calcite, thus leading to a higher compressive strength . In this study, the mean particle size of NP was chosen as 17 μm which was similar to the ones of PC and LP to investigate the effects of fine …

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  • to improve today’s concrete, do as the romans did

    to improve today’s concrete, do as the romans did

    Jun 04, 2013· The not-so-secret ingredient is volcanic ash, whichRomans combined with lime to form mortar. They packed this mortar and rock chunks into wooden molds immersed in seawater. Rather than battle the marine elements, Romans harnessed saltwater and made it an integral part of the concrete

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  • properties ofconcretemade withvolcanic ash- sciencedirect

    properties ofconcretemade withvolcanic ash- sciencedirect

    Volcanic ash(VA) is formed duringvolcaniceruptions, and is considered as natural pozzolan as per ASTM C618-93, a standard specification for ‘FlyAshand Raw or Calcinated Natural Pozzolan for Use as a Mineral Admixture in PortlandCement Concrete’.It can be suitably used incement, mortar, andconcrete

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  • roman concrete:volcanicmaterial created an empire

    roman concrete:volcanicmaterial created an empire

    Jan 06, 2015·Roman concretederives from a type ofvolcanic ashcalled Pozzolana. Unlike other types ofvolcanicmaterial, Pozzolana contains siliceous (silicon dioxide) and aluminous elements. This unique composition makes theashreact with other materials. Under the right conditions, thisashwill bond with specific elements to create a type ofcement

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  • strength performance of concrete produced with volcanic

    strength performance of concrete produced with volcanic

    Chemical composition ofvolcanic ashas well as the specific gravity, bulk density, workability, compressive strength split tensile strength and flexural strength properties of varying percentage ofvolcanic ashblendedcement concreteand 100%cement concreteof mix ratio 1:2:4 and water-cementratio of 0.5 were examined and compared

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  • isvolcanic ashthe keyto stronger and greener concrete?

    isvolcanic ashthe keyto stronger and greener concrete?

    Research found that pulverizing thevolcanic ashdown into finer particles and mixing withcementproduced strongerconcretestructures than regularcementused today. However, reducing thevolcanic ashdown to smaller particles used more energy, so to achieve strongerconcrete, there must be a trade off with the amount of energy used to create it

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  • properties of concrete made with volcanic ash| request pdf

    properties of concrete made with volcanic ash| request pdf

    During the recent years, the use of pozzolanic materials (e.g.,volcanic ash) inconcreteandcementmanufacturing has increased significantly since it can reduce the environment hazard associated

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  • why 2,000 year-old romanconcreteis so much better than

    why 2,000 year-old romanconcreteis so much better than

    Theirs was created withvolcanic ash, lime and seawater, taking advantage of a chemical reaction Romans may have observed in naturally cementedvolcanic ashdeposits called tuff rocks. Mixed in with thevolcanic ashmortar was morevolcanicrock as aggregate, which would then continue to react with the material, ultimately making Romancement

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  • the secrets of ancient romanconcrete-history

    the secrets of ancient romanconcrete-history

    Aug 29, 2018· By comparison, Portlandcement(the most common modernconcreteblend) lacks the lime-volcanic ashcombination, and doesn’t bind well compared with Romanconcrete. Portlandcement…

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  • whymodern mortar crumbles, but roman concrete lasts

    whymodern mortar crumbles, but roman concrete lasts

    Jul 03, 2017· But the researchers found that when seawater percolates through acementmatrix, it reacts withvolcanic ashand crystals to form Al-tobermorite and a porous mineral called phillipsite,

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  • why romanconcretestill stands strong while modern

    why romanconcretestill stands strong while modern

    Jul 04, 2017· The mineral, said Jackson, formed early in the history of theconcrete, as the lime, seawater andvolcanic ashof the mortar reacted together in a …

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  • future cities built with volcanic ash? | human world

    future cities built with volcanic ash? | human world

    Feb 11, 2018·Volcanic ashhas several sustainable advantages as an additive in manufacturingconcrete: The rocky material, which lies in ample supply around active and …

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  • filipinos turn taal volcano'sash, plastic trash into

    filipinos turn taal volcano'sash, plastic trash into

    Jan 19, 2020· Bricks made ofvolcanic ashare laid out outside a brick-making facility in Biñan, Laguna, Jan. 17, 2020. Adrian Portugal, Reuters BIÑAN, Laguna —Ashspewed by a Philippine volcano is being mixed with plastic waste to make bricks in an inventive response to the country's persistent problems of pollution and frequent natural disasters

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  • laboratory test of volcanic ash as concrete| lime

    laboratory test of volcanic ash as concrete| lime

    Laboratory Test of Volcanic Ash as Concrete- Free download as Word Doc (.doc), PDF File (.pdf), Text File (.txt) or read online for free. This is a laboratory experiments which analyses the suitability ofvolcanic ashas a replacement for ordinary portlandcement,expecially in subsaharan africa where housing is owned only by the the Rich.An alternative Pozzolanic materials would go along way

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  • utilizing volcanic ash to create a greener concrete

    utilizing volcanic ash to create a greener concrete

    Jul 15, 2020· In Japan,concreteconstruction is seeing new improvements through an unlikely source:volcanic ash. With sand becoming more and more scarce, a couple of universities and firms have realized the potential of utilizingashto create greenerconcrete

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  • utilizing volcanic ash to create a greener concrete

    utilizing volcanic ash to create a greener concrete

    Jul 15, 2020· In Japan, concrete construction is seeing new improvements through an unlikely source: volcanic ash. With sand becoming more and more scarce, a couple of universities and firms have realized the potential of utilizing ash to create greener …

    read morecrusher
  • biñan facility turns taalvolcanic ashintocementbricks

    biñan facility turns taalvolcanic ashintocementbricks

    Jan 14, 2020· The mixture of volcanic ash, sand, and cement, as its main component, can create concrete bricks. According to an article published by New Atlas, one of the world’s largest independent science and technology publications, a research team from the Massachusetts Institute of Technology (MIT) has found that pulverizing volcanic ash and adding it to the mixture can make physical …

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  • kgs--kansasvolcanic ashresources--uses

    kgs--kansasvolcanic ashresources--uses

    Volcanic ash, in addition to its natural cementing properties, serves the purpose of a fine aggregate that fills the voids between the fine sand aggregate and the cement. In concrete made with volcanic ash as much as 50 percent of the cement may be replaced by the ash, although a …

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  • what ispozzolana? (with pictures)

    what ispozzolana? (with pictures)

    Pozzolana is volcanic ash that is used as a mixture in cement to provide strength and resistance to wear and tear from the elements and chemical breakdown. Originally, pozzolanic ash was mixed with lime to create a strong cement mixture. The first structures known to be built with pozzolana were created somewhere around the 3rd century B.C

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  • bricks from volcanic ash — a blessing indisguise - asia

    bricks from volcanic ash — a blessing indisguise - asia

    Earlier studies, notably by at the Massachusetts Institute of Technology, have shown that volcanic ash can be used as a substitute for cement and save the large amounts of energy needed to reach the high temperatures to produce cement. “This idea of mixing volcanic ash to form concrete is not new as it has been used for ages,” says fire engineer expert Gerard Ronquillo

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  • cities of thefuture could be builtwithconcretemade

    cities of thefuture could be builtwithconcretemade

    Mar 16, 2018· Imagine concrete buildings filled with volcanic ash—ash that's embedded into the walls making them stronger and more environmentally friendly. That's what a …

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