average density of recycled concrete aggregate

Construction Aggregate Calculator - Vulcan Materials Company

Construction Aggregate Calculator. Enter the width, length, thickness, and product density and hit the "Calculate" button to calculate your estimate. If you do not know the product density, use the optional density estimator* or contact a local sales representative.

Some mechanical properties of normal and recycled ...

sources. Recycled concrete aggregate samples were made of aggregate sizes between 5 mm and 20 mm, and the maximum size of natural aggregates used was 20 mm. Their results showed that the density of recycled concrete aggregate was 3% to 10% less than that of natural aggregate and the water absorption of recycled concrete aggregate was 3 to 5 ...

Aggregate Base Density Data - Earthwork/grading ...

The (150-180) density data comes from a "Design and Control of Concrete Mixtures" book and appears to refer to the "particle" density of aggregate. However, since the aggregate is made up of particles, it is reasonable that the compacted density of the aggregate is between (150-180 lb/ft^3).

Recycled Aggregate - California

Recycled aggregate is produced by crushing concrete, and sometimes asphalt, to reclaim the aggregate. Recycled aggregate can be used for many purposes. The primary market is road base. For information on recycling asphalt pavement into new asphalt pavement. See Asphalt Pavement Recycling.

Recycled Aggregates - Portland Cement Association

The natural process of carbonation occurs in all concrete from the surface inward. In the process of crushing concrete to create recycled concrete aggregates, areas of the concrete that have not carbonated are exposed to atmospheric carbon dioxide. The LEED ® Green Building Rating System recognizes recycled concrete in its point system. Credit ...

What is the density of 20mm aggregate? – MVOrganizing

20 mm aggregate density:- density of 20 mm aggregate is 1550 kg/m3, it means 1 cubic metre of 20 mm aggregate weight is 1550 kg. What is the density of crushed aggregate? Most of the aggregates possess a relative density within 2.4 – 2.9 with a similar particle density about 2400-2900 Kg/m3 (150-181 lb/ft3).

Some Mechanical Properties of Normal and Recycled ...

The results showed that the slump of recycled aggregate concrete (RAC) was less than that of normal aggregate concrete (NAC). For class C20/25, the average compressive strength, rebound hammer and density of the RAC were 26%, 17% and 16.6% less, respectively, than those of NAC. The splitting tensile strength of RAC was 3.5% greater that of NAC.

#304 Recycled Aggregate - Landscaping Supplies Cleveland

Size 2" to fines with concrete- like compaction, our #304 Recycled Aggregate is an excellent base for paving stones and retaining walls that meet the ODOT specs for sizing . Description. Crushed, commingled concrete, brick stone, block, slag, and other roadway aggregates ; Product Use. Compactable aggregate ; Base or sub-base under pavements ...

Density of Cement, Sand and Aggregate, Bulk Density of ...

The approximate value of bulk density for aggregate usually used for normal-weight concrete varies between 1200-1750 Kg/m 3 or 75 to 110 lb/ft 3. Relative Density or Specific Gravity of Aggregate Aggregate Contains both permeable and impermeable pores.

Density of Cement Sand and Aggregate | Cement Density ...

The density of coarse aggregate used in concrete lies between 2.4 – 2.9 with a similar particle density about 2400-2900 Kg/m 3 (150-181 lb/ft 3). What Is the Density of Fine Sand? The density of sand (fine aggregate) is ranging between 1450 – 2082 kg/m 3 depending on different conditions like wet, dry, loose, dry-packed, and wet packed.

Evaluation of Recycled Concrete for Use as Aggregate in ...

This study evaluated the use of recycled concrete as coarse aggregate in new concrete pavements. Recycled concrete aggregate (RCA) produced from demolished pavements in three geographically-dispersed locations in Washington state were used to perform testson aggregate characte ristics, fresh concrete propertiesand hardened concrete properties.

Aggregates for Concrete - Greenspec

Key points. • 'Aggregate' is a term for any particulate material. It includes gravel, crushed stone, sand, slag, recycled concrete and geosynthetic aggregates. Aggregate may be natural, manufactured or recycled. • Aggregates make up some 60 -80% of the concrete mix. They provide compressive strength and bulk to concrete.

SUSTAINABLE CONSTRUCTION

Eco-concrete is defined as concrete with at least 50% by mass of total aggregate content replaced by recycled materials, used for non-structural applications. Typical materials used for aggregate replacement include washed copper slag or recycled aggregates or a combination of both • Recycled Aggregate …

Experimental Study on Tensile Creep of Coarse Recycled ...

w/c Water-to-cement ratio, s/a ﬁne aggregate proportion, N natural, R recycled Table 2 Properties of aggregate. Specimens Recycled aggregate Natural aggregate Coarse aggregate Coarse aggregate Fine aggregate Density SSD (g/cm3) 2.56 2.60 2.56 Dry density (g/cm3) 2.50 2.58 2.51 Absorption ratio (%) 2.50 1.07 2.25 Fineness modulus 6.69 6.54 2.93

Effect of recycled concrete aggregate (RCA) on mortar's ...

Due to its derivation, recycled aggregate reduces the density, and it is known that thermal conductivity is correlated with material density [12,36]. For example, Real et al. [ 37 ] observed that, on average, each 1% increment in aggregate porosity reduces the thermal conductivity of lightweight concrete …

EVALUATION OF RECYCLED CONCRETE FOR USE AS …

demolished concrete pavements for use as aggregates in the new concrete pavements. The use of recycled concrete as aggregates (RCA) would help to alleviate several of the concerns presented by the replacement of so many miles of highway. Pavements being demolished could be processed and then used as aggregate in constructing new concrete roadways.

Use of Crushed/Recycled Concrete as Drainable …

the recycled concrete. And shall identify location from where concrete will be removed; recycled concrete shall be placed in max 4-in lifts and each lift shall be compacted by a min of 3 passes w/ 10-ton roller (304.3.5) New Jersey Used as Dense-graded aggregate conforms with gradation and plasticity requirements (901.08)

Average EPD for Aggregates

Average storage density 1.56 t/m 3 Storage density range 1.46 to 1.62 t/m 3 Particle size Designation (4/x) mm Table 6: Technical data of recycled aggregate 0/x mm Description Value Unit Average bulk density (moisture content 4%) 1.53 t/m 3 Bulk density range 1.50 to 1.56 t/m 3 Loosening factor L 0.89

(PDF) Mix Design of Recycled Aggregate Concrete Using ...

This paper is devoted to the studies of material and mechanical properties of recycled aggregate concrete using packing density method. This paper considers mix of two different aggregate sizes of ...

Current Applications of Recycled Aggregates from ...

When the material is composed of crushed concrete and masonry rubble, the density values are lower than for recycled concrete aggregate . Red ceramics density is not only lower than concrete density [ 41, 42, 43 ], but also varies with the manufactured temperatures [ 44 ].

An Overview of Recycled Concrete Aggregate | ETM Recycling

Recycled aggregates are only classified as recycled concrete aggregates (RCA) when the primary material is concrete. By crushing and compressing existing waste concrete and combining it with aggregate, producers can create concrete aggregate to a specific size and quality, which makes it very cost effective to purchase.

DIVISION 9 – MATERIALS

and acceptance of aggregates: Base Fineness Modulus. Average fineness modulus typical of the source for a specific fine aggregate. Cobblestones (Cobbles). Rock fragments, usually rounded or semi-rounded, with an average dimension between 3 and 10 inches. Crushed Concrete Aggregate. Crushed Portland cement concrete. Crushed Particles.

RECYCLED WASTE CONCRETE European and North American ...

This report examines the uptake of recycled concrete aggregate in North America and Europe. The political and economic drivers are identified and case studies from specific countries are cited. Relationships between regional waste policies, product stewardship, population density, industrial

Crushed Concrete Density? - Earthwork/grading engineering ...

Hangontight....With pieces that large, your density will not be high...likely on the order of 90 to 100 pcf for the crushed concrete. If it were crushed in the manner of a graded aggregate base material, the density would be upwards of 120+ pcf. RAP will be somewhere in the 90 to 95 pcf range, depending on gradation.

Use Of Recycled Aggregate In Concrete – IJERT

Parekh D. N. and Dr. Modhera C. D. Assessment of Recycled Aggregate Concrete publish by JERS/Vol.II/ Issue I/January-March 2011. S R Yadav, S R Pathak, Use Of Recycled Concrete Aggregate In Making Concrete- An Overview 34th Conference on OUR WORLD IN CONCRETE & STRUCTURES: 16 18 August 2009, Singapore.

Recycled Concrete Aggregate | Crushed Concrete Aggregate ...

Recycled Concrete Aggregate is that the use of debris from dismantled concrete structures. utilization is cheaper and a lot of ecological than truckage debris to a lowland.. Crushed debris is often used for road gravel, revetments, holding walls, landscaping gravel, or staple for brand spanking new concrete. giant items are often used as bricks or slabs or incorporated with new concrete into ...

Concrete manufacture with un-graded recycled aggregates

Figure 8 shows the relative density for each concrete type. Recycled aggregate concrete has the lowest density being 9 per cent less dense than plain concrete. The concrete with the crushed glass aggregate is 3 per cent less dense than plain concrete. The lower density can be attributed to the additional water required

Summary of Testing of Recycled Crushed Concrete

To investigate the performance of recycled concrete aggregates (RCA), physical test data from 1977 through 1982 are summarized ... 2. A study of Figure 1 indicates that the average ... maximum density results before 1982 had a mean value, based on 119 tests, of 128.5 pounds per cubic ...