• Concrete and Cement Information - The Concrete Network

    A mix of M-80 Grade suitable for pumped concrete is to be designed with the following materials and detail. 1. OPC 53 Grade, 7-day strength 52.5 N/mm 2, Spgr 3.15. 2. Silica Fume Specific Gravity 2.20. 3. Standard deviation for the mix 5.0 N/mm 2. 4. Grading and properties of river sand and 12.5 mm crushed aggregate are given in Table-1. 5.

  • Concrete Mix Design – M70 Grade of Concrete (OPC 53 Grade)

    Jan 28, 2018· The strength of the concrete is inversely proportional to the water/cement ratio. In other words, the more water you use to mix the concrete, the weaker the concrete mix. The less water you use to mix the concrete, the stronger the concrete mix. S...

  • Correct Ratios for Concrete Mixes

    advantages & disadvantages of using crusher dust instead of sand in r.c.c work.. Answer / nadim the only advantage of using crusher dust in concrete is to reduce the volume of sand in the concrete mix whereas the disadvantage if we use complete dust in mix is it get mix with cement and form concrete balls which is not good in concrete mix design

  • Preparing the right mix for solid concrete | Farmstyle ...

    I do have tables for trial concrete mixes but they only go up to 40 MPa. According to Fulton’s Concrete Technology published by the CCI, which has a chapter on concrete mix design (maybe there’s a copy in your school library?), high-performance concrete with a 28-day compressive strength of 68,9 MPa = high strength concrete.

  • Design Mix- Ready Mix Concrete & M Sand Manufacturers in ...

    Aggregates for Concrete bination of gravels or crushed stone with particles predominantly larger than 5 mm (0.2 in.) and generally between 9.5 mm and 37.5 mm (3⁄ 8 in. and 11⁄ 2 in.). Some natural aggregate deposits, called pit-run gravel, consist of gravel and sand that can be readily used in concrete after minimal processing. Natural ...

  • Mix Design for Pumpable Concrete | Materials | Concrete ...

    Design Mix Ready Mix Concrete and Design Mix Stone Crusher established in 2011, is a premium Ready Mix concrete , M Sand and construction Material suppliers catering to customers in Bangalore,Tumkur and surrounding areas.

  • How to calculate quantity of sand crushed stone and cement ...

    In the present study we have selected M30 Grade of concrete mix. To find out the effect of fineness modulus (FM) of sand on concrete, sand of different FM from 2.0 to 3.0 is chosen. Two sizes of coarse aggregate particles: i.e. 20 & 10 mm, which are generally used in standard concrete mix, were chosen for the investigations. Concrete Mix Selected:

  • Aggregates for Concrete - Civil Engineering

    May 17, 2017· Concrete Mix Design:-Concrete is a composite mixture which consists of Cement, Sand and Aggregate. Concrete mix design is the procedure for finding the right quantities of these materials to achieve the desired strength. Accurate concrete mix design makes concrete …

  • Testing of Sand Quality at Construction Site for Concrete

    Yes, M-Sand (crushed sand) can replace river sand in a concrete mix proportion. M-Sand are manufactured by latest technology (Vertical shaft impactor nachines). They give at par results in comparison to rivers sand concrete mixes, in both fresh and hardened state. Since quality control is maintained in the process of preparing manufactured sand, the … Can we use m-sand (crusher sand ...

  • (PDF) Influence of crusher dust on the properties of concrete

    There are different methods for testing of sand quality at construction site for concrete construction. Quality of sand is as much of importance as other materials for concrete. Aggregate most of which pass through 4.75 mm IS sieve is known as fine aggregate.

  • advantages & disadvantages of using crusher dust instead ...

    Jan 12, 2018· Hello dears! from this short video lecture you can learn making your own excel work sheet to find cement, sand and crushed stone. using the sheet you will have to enter only ratio of concrete and ...

  • Importance of Gravel and Sand for Concrete | Hunker

    An attempt has been made through this study to find out a suitable mix proportion of desired strength by replacing sand with crusher dust in cement concrete, at the same time retaining its quality.

  • Concrete Mix Design | Different Grades of Concrete

    Feb 04, 2015· This also includes developing a new concrete mix design philosophy that is adapted to crushed sands with specially engineered properties that are different from those of natural sands. The latter is what has been chosen as the philosophy of the new approach of crushed sand production currently under development within the COIN project.

  • CONCRETE MIX DESIGN USING CRUSHED SAND

    Sometimes to safeguard against the under sanding 3-4% extra sand is added. The total content of fine aggregate in kg per cubic metre of concrete for various maximum size of coarse aggregate is shown in Table 20.50. Step by step design calculations for a pumpable concrete mix. Step 1:

  • Effect of Fineness of Sand on the Cost and Properties of ...

    Concrete mix design – M70 grade of concrete provided here is for reference purpose only. Actual site conditions vary and thus this should be adjusted as per the location and other factors. A. Design Stipulation: Characteristic comprehensive Strength @ 28 days = 70 N/mm 2 Maximum size of aggregate = 20 mm Degree of workability = Collapsible

  • M-80 Grade Pumpable Concrete - Civil Engineering

    Apr 12, 2018· A typical concrete mix contains 60 to 80 percent sand and gravel, also known as an "aggregate." This aggregate compound is more than filler. It plays an important part in the concrete's composition. The amount of sand and gravel in a bag of concrete determines the …

  • Mix Design for Pumped Concrete with PPC, OPC, OPC+Flyash

    Generally, ‘brickies’ or ‘plasterer’s’ sand is not suitable for concrete due to its high clay content but can be used to make mortar. Coarse aggregate — River gravel, crushed stone or blue metal is the most appropriate coarse aggregate and should be less than 20mm in size. Standard gravel often contains clay or fine particles, which ...

  • What is the main purpose of sand in concrete making? - Quora

    CHAPTER 2 LITERATURE REVIEW Shodhganga significance of using the manufactured sand for replacing the natural sand in concrete It includes the literature about mix design fresh concrete properties powder than that of concrete without substitution , concrete crusher low in price in congo reachonline crushing of stone labour contractor in .

  • New type of crushed sand to replace natural sand in ...

    Fine aggregate of grading as given in Table 2 is best for pumped concrete. The proportion of fine aggregate (sand) to be taken in the mix design is given in Table 3. ... For Mix A and B free W/C ratio with crushed aggregate and given strength for target strength of ... “Concrete Mix Design Based on Flexural Strength for Air-Entrained Concrete ...

  • literature review for crusher sand in concrete

    Topics include issues relating to concrete basics, mix design, installation, and decorative concrete. Components of the Basic Concrete Mix. There are three basic ingredients in the concrete mix: Portland Cement; Water; Aggregates (rock and sand) Portland Cement - The cement and water form a paste that coats the aggregate and sand in the mix ...