fully replacement of broken concrete in 20mm aggregate size

Different Types & Sizes of Aggregate for Concrete ...

Aug 11, 2018 · The usual range employed is between 9.5mm and 37.5mm in diameter. Typically the most common size of aggregate used in construction is 20mm. A larger size, 40mm, is more common in mass concrete. Larger aggregate diameters reduce the quantity of cement and water needed because of its lower Voids.

Aggregate Selection for Concrete

Now, Total saving by substituting natural aggregate with tile aggregate in M 20 concrete – Volume of 20 mm aggregates after 20 % replacement with tile aggregates = 20/100 × 0.171 = 0.0342 m 3 = 0.171 – 0.0342 = 0.1368 m 3. Price of 0.1368 m 3 of aggregates = Rs.162

(PDF) Study of Partial Replacement of Natural Aggregate by ...

aggregate used is 20 mm ... proved the applicability of usage of recycled concrete aggregates as a full replacement of coarse aggregate by using different grain sizes of natural and recycled ...

What happened when we not used 20 mm size aggregate in ...

Your question is not clear. Do you want to use concrete with nominal maximum size of aggregate less than 20 mm (i.e. 10 mm, 12.5 mm or 6.3 mm) or you wish to have concrete with say NMSA 40 mm and jumping to 10 mm while grading.

Replacement Of Coarse Aggregate In Concrete - [Civil Planets]

Using the E-waste as a partial replacement of coarse aggregate in concrete is the best solution. We can not fully replace material in concrete because it impacts the workability of concrete. The electronic waste is crushed as required particle size and can be mixed with other aggregates in concrete which will not affect the quality & durability ...

Partial Replacement of Coarse Aggregate with Broken Ceramic ...

Abstract— The study reports on experimental investigation on the suitability of the use of broken tiles as partial replacement for crushed granite in concrete production. Control mixing ratio of 1:2:4 batched by weight with water – cement ratio of 0.55 was used. The percentage replacement varied from 0% to 40% at intervals of 5%.

differences in concrete properties using 10mm to 20mm aggregate

Depending on the mix design, either can be used to make essentially any range of concrete strengths. When you use a smaller aggregate, such as the 10mm as your nominal coarse aggregate size, the specific surface area of the total volume of coarse aggregate is much higher than for the 20mm aggregate.

EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON CONCRETE ...

increases with an increase in coarse aggregate size. However, most other studies disagree. Walker and Bloem (1960) and Bloem and Gaynor (1963) concluded that an increase in aggregate size results in a decrease in the compressive strength of concrete. Cook (1989) showed that, for compressive strengths in excess of 69 MPa (10,000 psi),

Grain Size Analysis of Fine Aggregates - Particle Size ...

Grain Size Analysis of Aggregates. Fine aggregate is the sand used in mortars. Coarse aggregate is the broken stone used in concrete .The coarse aggregate unless mixed with fine aggregate serves no purpose in cement works. The size of fine aggregate is limited to a maximum of 4.75 mm gauge beyond which it is known as coarse aggregate.

Effects of Aggregate Properties on Concrete - Size, Grading

The grading or size distribution of aggregate has a considerable effect on the properties of concrete as it determines the paste requirement for workability of concrete. The paste also affects the cost of the mix as cement is the most expensive component in the mix.

How to Choose Quality Coarse Aggregate for Concrete Construction?

In the majority of concrete works, aggregate sizes of 20 mm or smaller are used. To ensure good coarse aggregate compaction and higher concrete density, it is recommended to mix 20 mm and 10 mm coarse aggregates in the ratio of 70:30 or 60:40. It is recommended to stack different aggregate sizes to use them efficiently.

VARIATION IN STRENGTH PROPERTIES OF CONCRETE USING WASTE ...

Abstract: This study examined the variation in the strength properties of concrete using waste glass aggregate (WGA) as partial replacement for different coarse aggregates grading. Aggregates sizes of 20mm and 25mm were partially replaced with WGA at 10%, 20% and 30%.

Partial Replacement of E-plastic Waste as Coarse-Aggregate in ...

Jan 01, 2016 · Fineness Modulus of bigger sized plastic aggregate ( above 20mm) 7.59 6. Fineness Modulus of medium sized plastic aggregate (20 mm) 8.2 7. Fineness Modulus of smaller sized plastic aggregates ( below 20 mm) 9.18 Methodology The mix design for M20 grade concrete was done as per IS 10262-1982 and the following data was required for concrete mix ...

IOP Conference Series: Materials Science and Engineering ...

pieces are further broken into 20 mm down size and used as aggregate in concrete. The specific gravity of the clay tile chip aggregate was found to be 2.1. The particle size distribution curve of the TCA indicates that the aggregate is grades as per IS:383[19]. 2.5Water and chemical admixture Potable water was used as mixing water in concrete.

Concrete aggregate alternatives - Appropedia: The ...

Nov 14, 2020 · High-density polyethylene can be added to concrete and sand as a feasible replacement for course aggregate. Research has shown that plastic bags that are tightly packed and then heated, shrink to a size that can easily be used in concrete. But as the name implies, the material is too ductile at full strength to support structural loads at 2500psi.

Fulton Hogan Quarries I PRODUCTS LIST

But in hard rock quarries, where the aggregate is crushed, it is simply ‘concrete aggregate’. Aggregate normally is graded over a range of sizes, ie. 20mm to 14mm as one product, then 14mm to 8mm as another product. Common products are: GR40-20 – Graded Rounds from 40mm to 20mm. CA14-8 – Concrete Aggregate from 14mm to 8mm

Size effects on mechanical properties of recycled aggregate ...

Nine mixture proportions were used to examine the effect of size on RATIC mechanical properties ().Different concrete types (normal concrete (NC), RAC, thermal insulation concrete (TIC), RATIC), recycled coarse aggregate replacement of RATIC (0%, 30%, 50%, 70%, 100%), and strength grade (C30, C40, C50) of RATIC were investigated.

Sulfate Attack and Sulfate Content in Concrete: A Literature ...

Jan 14, 2017 · The recommendations for concrete (dense, fully compacted made with 20mm nominal maximum size aggregate conforming to BS 882 or BS 1047) exposed to sulfate attack in accordance with BS 5328-1 can ...

Replacement Of Aggregate By Granite Stone In Concrete

Siddique R., Effect of fine aggregate replacement with class F fly ash on the Mechanical Properties of Concrete.Cement and Concrete research, 2003, 33 4, p. 539547. 5. Nagaraj T.S., Banu Z., Efficient Utilization of rock dust and Pebbles as Aggregate in Portland cement concrete, The Indian Concrete Journal, 1996, 701, p. 5356.

Study of Partial Replacement of Natural Aggregate by Recycled ...

aggregate used is 20 mm downsize. The recycled aggregate used in this work are collected from the demolished building around Madambakam area. Debris concrete were taken in one place and were crushed with a hammer and broken into pieces like natural aggregate even though matrix of concrete cannot be completely removed. After crushed into

Study of Strength and Workability of Different Grades of ...

Table 3: Grading of coarse aggregate Sieve Size Percentage passing 40 mm 100 20 mm 98.7 10 mm 15.4 4.75 mm 3.6 Brick Powder: Brick bats crushed in coarse powder form were used as a fine aggregate for making concrete. The waste bricks as obtained from garbage of a broken building were collected and pulverized to get the particle passing 4.75

Defective concrete pavements - Weber UK

Areas of the concrete surface can spall and break out due to freeze/thaw damage, impact damage and weak surface of the concrete due to over-watered concrete mixes. The concrete unravels as the aggregate is broken out of the area by constant trafficking and these areas grow in size. Over-watered concrete can result in dusty, friable surfaces.

International Journal of ChemTech Research

2.3 Coarse Aggregate (CA) Broken granite stones are generally used as a Coarse Aggregates (CA).Locally available CA having the maximum size of 20mm was used in our work. The aggregates were washed to remove any dust and were dried. The Aggregates were tested as per Indian Standard Specifications. The grading of aggregate should be

Suitability of Crushed Cow Bone as Partial Replacement of ...

the fine aggregates, CCB and the coarse aggregates. All the investigations were conducted using relevant standards. 2.2.2 Main Investigations Workability Test Workability properties of the concrete with CCB as partial or full replacement of fine aggregates were assessed through the slump test and the compacting factor tests.

PERFORMANCE OF RECYCLED AGGREGATE CONCRETE

Aggregate (RA) on compressive strength of Recycled Aggregate Concrete (RAC) were investigated. RA is used to replace natural aggregate (NA) as coarse aggregate in concrete mixes. This research also covered RAC mixtures at different water-cement ratio (0.4, 0.5, 0.6). It was found that RAC had lower compressive strength compared to Natural

Aggregates ppt - SlideShare

Apr 28, 2013 · 22Type of structure Max. size of aggregate1. Mass concrete work 40 mmi.e. dams, retaining walls,piers and abutments, etc.2. R.C.C work 20 mmi.e. beams, columns, etc3. Flooring 10 mmIt may be clearly noted that the size andshape of the aggregate particles influence theproperties of freshly mixed concrete more ascompared to those of hardened ...

Partial Replacement of Cement With Marble Powder in Concrete

Coarse aggregate: The 20mm size aggregates-The coarse aggregates with size of 20mm were tested and the specific gravity value of 2.78 and fineness modulus of 7 find and selected. The coarse aggregate fine angular sharpened edges aggregates were available from local sources. Water: Potable water used for mixing and curing purposes.

Size of test cylinder - American Concrete Institute

The nominal maximum size of an aggregate is the smallest sieve opening through which the entire amount of aggregate is permitted to pass. Hence, a 4 x 8 in. (100 x 200 mm) can be specified if no aggregate used for making the concrete cylinder is retained on a 1¼ in. (31.5 mm) sieve.

An Experimental Study on Partial Replacement of Coarse ...

The aggregate used this project mainly in basalt rock of which comes under normal weight category. The aggregates are locally available. 50% of the aggregate used are of 10-12 mm size and remaining 50% are of 20mm size. The coarse aggregate was also tested for various properties like specific

OPTIMIZATION OF PARTIAL REPLACEMENT OF CONCRETE COARSE ...

studied the use of crushed olive seed shell as full replacement for coarse aggregate in concrete and observed that at full replacement there was a 9% increase in the 28-day compressive strength of the concrete with crushed olive seed in comparison to the concrete with uncrushed olive seed.

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