Our Products

CRUSHERS ,GRINDINGS AND MINING CONSTRUCTIONS

PE Jaw Crusher

PEW Jaw Crusher

HJ Series Jaw Crusher

PF Impact Crusher

PFW Impact Crusher

Hammer Crusher

HPC Cone Crusher

HPT Cone Crusher

HST Cone Crusher

PY Cone Crusher

VSI Crusher

VSI5X Crusher

Mobile Cone Crusher

Mobile Impact Crusher

Mobile Jaw Crusher

Ball Mill

LM Vertical Grinding Mills

MTM Trapezium Grinder

MTW Milling Machine

Raymond Mill

SCM Ultrafine Mill

Why there is a shortage of sand

Apr 24, 2017· Fortunately, there are substitutes for sand: asphalt and concrete can be recycled, houses can be built with straw and wood, and mud can be used for reclamation.

Chat Now

Influence of Local Sand on the Physicomechanical

Dec 01, 2016· Baali et al., 2007, have studied the substitution of the dune sand by the ground sand (calcined clay) This study shows the importance of this method to make concrete with binary sand (natural and manufactured fine aggregates) in order to correct the physical properties of sand. so there is not any loss or alteration of concrete material.

Chat Now

Influence of Local Sand on the Physicomechanical

Dec 01, 2016· This research consists of incorporating the crushed sand (CS) in the composition of a concrete and studies the effect of its gradual replacement by the sand dune (SD) on sustainability of high performance concrete (HPC) in aggressive environments. The experimental study shows that the parameters of workability of HPC are improved when the CS is partially replaced by the SD (<2/3).

Chat Now

Concrete: The Basic Mix

A basic mixture of mortar can be made using the volume proportions of 1 water : 2 cement : 3 sand. Most of the student activities can be conducted using this basic mixture. Another "old rule of thumb" for mixing concrete is 1 cement : 2 sand : 3 gravel by volume. Mix the dry ingredients and slowly add water until the concrete is workable.

Chat Now

Substitutes or Alternatives of Bricks used for

Substitutes or Alternatives of Bricks used for Construction in India! According to one study, our country needs about 60 billion bricks every year and if no suitable substitute is found out, this would exhaust about 1600 x 10 6 kN of clay fields or other agricultural land annually.. It will thus make barren about 3000 hectares of fertile land.

Chat Now

What actually happens if I vary proportions of cement and

Concrete, mortar and grouts are all mixtures of Portland cement, water, and aggregates ( sand, and in the case of concrete: gravel.) Concrete is used for structural purposes, and it's primary role is to support a load. The ideal concrete is a solid, monolithic block of rock with no cement .

Chat Now

Why the world is running out of sand

Nov 08, 2019· The overwhelming bulk of the sand we harvest goes to make concrete, and for that purpose, desert sand grains are the wrong shape. Eroded by .

Chat Now

What can I use instead of firebrick?

Jun 09, 2020· Click to see full answer In respect to this, can I make my own fire bricks? Lay a piece of plastic sheeting on a smooth surface or you can mix the refractory cement on a smooth, concrete surface. Pour out one and a half parts masonry cement, one and a half parts perlite, two parts fire-clay and two parts sand.Stir the dry mixture using a shovel until it is thoroughly mixed.

Cut-price concrete substitute

Mar 08, 2017· Acrete is a lighter, stronger and less expensive substitute for concrete. Inventor Jinhong Zhang, associate professor of mining and geological engineering in the University of Arizona's College of Engineering, developed a new substitute for concrete that has a number of advantages over traditional Portland cement.

Chat Now

Concrete Mix Ratio and How to Mix Concrete Including a

Concrete is a mixture of cement, sand (fine aggregate), small stone or gravel (coarse aggregate) and water. It has many applications, from fence posts to motorway bases and, because of this, there are many different concrete mix ratios that the constituents can be mixed to with each resulting in a different strength of concrete.

Chat Now

Eco-Friendly Alternatives To Traditional Concrete

Jul 18, 2019· Posted on July 18, 2019. Concrete is a mixture of cement, gravel, sand, water and a range of aggregates. With about 10 billion tons of concrete produced every year, it is the most consumed substance in the world, second only to water.. It is also the world's most widely used material for construction – from bridges to large buildings, concrete forms the very foundation of our infrastructure.

Chat Now

Can I Make Concrete with Just Sand and Cement? (What To .

Aug 13, 2020· Image by jarmoluk via Pixabay. Just as you can make no-fines concrete without sand, you can create a concrete mix that incorporates a high proportion of sand. However, concrete that incorporates higher levels of sand compared to coarser aggregates will be weaker overall and cannot be used for structural applications or where support or load-bearing abilities are required.

What are the Materials for Replacement of Sand in .

The percentage passing 150 microns of manufactured sand is relaxed to 20% (while that of natural sand is limited to 10%). As per design and economics, crushed sand can be used to partially or fully replace river sand from a concrete mix. The Availability of crushed sand is not a concern as it can be manufactured from rocks in any season.

Chat Now

How Can Concrete Construction Be Greener?

Concrete is produced from the mixture of cement, aggregates and water. Aggregates make up from 60 to 80% of the concrete mix, providing compressive strength and bulk. Aggregates are divided in two categories, coarse and fine aggregates, depending on the diameter of particles.

UK study shows waste plastic can replace sand in concrete

Sep 14, 2018· "The research was focused on adding enough plastic so as to make the additions worthwhile in terms of providing a use for the waste, but at the same time not so much as to reduce the concrete strength to an extent which makes it too weak for structural applications," Dr Richard Ball, from Bath's Department of Architecture & Civil Engineering, told The Engineer. "10 per cent by volume

Chat Now

Could Desert Sand be Used to Make Concrete?

Apr 13, 2018· The combination of sand, water, and cement make concrete. Each element performs a function essential to making the material long-lasting and incredibly sturdy. To put it simply, concrete is made from cement mixing with water to form a paste that acts like glue; the mixture needs an aggregate to be complete.

Chat Now

Daniel Bosco is turning bottles into concrete

Apr 27, 2021· Daniel Bosco is turning bottles into concrete. Daniel Bosco FIEAust, founder and Director of Bluey Technologies. Making concrete requires sand — and lots of it. That's why some engineers are looking at substituting recycled glass, a more sustainable ingredient, in building materials. The start of 2021 ushered in an export ban on unprocessed

Chat Now

What actually happens if I vary proportions of cement and

Concrete, mortar and grouts are all mixtures of Portland cement, water, and aggregates ( sand, and in the case of concrete: gravel.) Concrete is used for structural purposes, and it's primary role is to support a load. The ideal concrete is a solid, monolithic block of .

Chat Now

Is the world running out of sand? The truth behind stolen

Jul 01, 2018· China leads the charge in today's sand-fuelled construction boom, consuming half the world's supply of concrete. Between 2011 and 2014 it used .

Chat Now

Mechanical and Durability Properties of Concrete Made with

A marginal increase in the strength properties can be achieved by the inclusion of UFS as partial replacement for fine aggregate in concrete making . The replacement of 10% aggregates with waste foundry sand was suitable for asphalt concrete mixtures, and the substitution did not significantly affect the environment around the deposition .

Chat Now

CBD-165. Calcium Chloride in Concrete

Calcium chloride will not "cure" all problems in concrete practice, nor should it be treated with grave suspicion. It can make a well made concrete better; it cannot correct poorly made concrete. It is no substitute for good design, proper workmanship or quality materials. Its use should be dictated by a particular situation.

Chat Now

Concrete is the stuff civilization is made of. But for all

Jun 17, 2018· Concrete is essentially just sand and gravel glued together with cement. It is also by far the most widely used building material on Earth. We consume twice as much of it every year as steel

Chat Now

Cement Production

G. Habert, in Eco-efficient Construction and Building Materials, 2014 10.1 Introduction. Cement production has undergone tremendous developments since its beginnings some 2,000 years ago. While the use of cement in concrete has a very long history (Malinowsky, 1991), the industrial production of cements started in the middle of the 19 th century, first with shaft kilns, which were later

Chat Now

Difference Between Mortar & Parging Cement

A person shouldn't substitute mortar for sand mix when preparing parging cement. Mortar may stick to the blocks or concrete structure after drying; however, over time it crumbles, falling off the structure. You will have to repeat the parging cement process again using the correct material.

Chat Now

Tips and Tricks for Concrete Crafting

Aug 30, 2017· Sand Topping Mix. Sand Topping Mix is also one of my favourites. It is a simple mix of portland cement and sand. This inexpensive mix is meant to be used at less than 2″ thickness so it was perfect for the STEPPING STONES which were my first concrete adventure many years ago. They still grace my garden and are aging nicely.

Chat Now

Waterfall made with Faux Concrete Rocks

Aug 08, 2021· It will be interesting to see if some creature makes a home of it. It is not noticeable that it is all hollow at all. I also threw some course sand into the concrete mix for more natural texture. That goes to show you that there really are no rules. I am sure your faux rocks will get better with practice!

Daniel Bosco is turning bottles into concrete

Apr 27, 2021· Daniel Bosco is turning bottles into concrete. Daniel Bosco FIEAust, founder and Director of Bluey Technologies. Making concrete requires sand — and lots of it. That's why some engineers are looking at substituting recycled glass, a more sustainable ingredient, in building materials. The start of 2021 ushered in an export ban on unprocessed

Chat Now

Concrete, a Centuries-Old Material, Gets a New Recipe

Aug 11, 2020· Aug. 11, 2020. On any given day, Central Concrete, in San Jose, Calif., does what concrete companies have been doing for centuries: combining .

Chat Now

Sand and Gravel in Concrete

Jan 30, 2014· The closer you bring the ratio to an even one-to-one of sand to cement, the stronger the rating becomes. This principles works in the opposite direction as well. If you want to get a little more technical, some concrete experts recommend going for 26 percent sand, 41 percent gravel, 11 percent cement and 16 percent water.

Chat Now

What is green concrete

It is the conventional concrete, is made up of waste cementitious material so that it doesn't make any environmental impact. When Portland cement is mixed with the eco-friendly cementitious material to some extent, the green concrete is formed. The commonly used partial substitute for Portland cement is sand, glass aggregate, fly ash, etc.

What Is Manufactured Sand (M Sand)

Why Manufactured Sand. We know that the river sand is mostly used for construction purposes all around the world, majorly for concrete making, cement mortar, and concrete blocks.. Various factors that show the need for manufacturing sand. 1. Global scarcity for Natural Sand. Excessive sand exploration and limit consumption of natural aggregate sources have led to the implementation of new

Chat Now

Recycled Aggregate

There is a broad consensus on the incorporation and acceptable quality of coarse RCA in concrete products. Existing specifications allow the use of coarse RCA in concrete products at various substitution ratios from 20% to 100%, however, fine RCA are usually not allowed to be used in any ratio in most cases (Carro-López et al., 2015).

Chat Now

Optimum content of copper slag as a fine aggregate in high

Jun 01, 2010· The concrete mixture conforms to the British Standards, BS 1881: Part 125 and BS EN 12390: Part 2, which is common practices in concrete production in Singapore.The mix proportion is shown in Table 2.A total of six different concrete mixtures were prepared, each with sand replaced by the copper slag at an increment rate of 20% by weight from 0% to 100%.

Chat Now

What can I use instead of firebrick?

Jun 09, 2020· Click to see full answer In respect to this, can I make my own fire bricks? Lay a piece of plastic sheeting on a smooth surface or you can mix the refractory cement on a smooth, concrete surface. Pour out one and a half parts masonry cement, one and a half parts perlite, two parts fire-clay and two parts sand.Stir the dry mixture using a shovel until it is thoroughly mixed.

Concrete without Cement

Concrete without Cement – A Green Alternative Fly Ash. Concrete without cement is possible with the use of fly ash as an alternate for cement. It matches both the chemical and physical properties of cement. Thus it has the ability to replace cement completely. The word "concrete" defines as the bonding between aggregates, cement and water.

Chat Now

Manufactured Sand (M-Sand) for Concrete -Properties and

Manufactured sand (M-Sand) is a substitute of river sand for concrete construction . Manufactured sand is produced from hard granite stone by crushing. The crushed sand is of cubical shape with grounded edges, washed and graded to as a construction material. The size of manufactured sand (M-Sand) is less than 4.75mm.

Chat Now

4 PRIMARY CEMENT COMPOUNDS & THEIR ROLES

Jul 14, 2017· Compounds of Cement cement compounds. About 90-95% of a Portland cement is comprised of the four main cement minerals, which are C 3 S, C 2 S, C 3 A, and C 4 AF, with the remainder consisting of calcium sulphate, alkali sulphates, unreacted (free) CaO, MgO, and other minor constituents left over from the clinkering and grinding steps.The four cement minerals play very .

Chat Now

What are the Materials for Replacement of Sand in Concrete

The percentage passing 150 microns of manufactured sand is relaxed to 20% (while that of natural sand is limited to 10%). As per design and economics, crushed sand can be used to partially or fully replace river sand from a concrete mix. The Availability of crushed sand is not a concern as it can be manufactured from rocks in any season.

Chat Now

Properties of Good Sand

As sand is an important construction material, it is always desirable to use the good quality sand. To judge the quality of the available sand, one must know the properties of good sand.Before using sand in a project, these desirable properties must be ensured.. Sand is a mixture of small grains of rock and granular materials which is mainly defined by size, being finer than gravel and coarser

Chat Now

Sand Replacement

Mar 03, 2010· The sand-pouring cylinder is calibrated using the following steps. The sand-pouring cylinder is filled with uniformly graded sand (passing 600 μ sieve and retained on 300 μ sieve) up to a height of 10 mm below the top.The mass of the sand-pouring cylinder filled with sand is recorded as M 1.The sand-pouring cylinder is then placed over a plane surface and the shutter is opened to allow the

Chat Now

Formulas for Lightweight Concrete

A: (Kelly) It is possible to make lightweight concrete using Styrofoam as aggregate, and this has many possible uses, especially in situations where there is a need for lighter concrete that is better insulating, but you cannot expect this to be as durable or hold up very .

Chat Now

Cement Replacement Material

Peter A. Claisse, in Civil Engineering Materials, 2016 16.4 Defining the objectives of a research programme. The research objective for any programme must clearly state the chosen application. Considering the example of a cement replacement material, few new products for use in concrete will be suitable for the full range of uses of Portland cement.Many may only be suitable for low strength

Chat Now

Vibrating Feeder

Vibrating Screen

XSD Sand Washer

Contact Us

Please fill in your name and your message and do not forget mail and/or phone if you like to be contacted. Please note that you do not need to have a mail programme to use this function.

  • Address:

    No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.

  • Phone No:

    +86-21-58386189

  • Email Address:

    [email protected]