density of recycled concrete

Ready-Mix Recycling for the Ready-Mix and Precast Industries


READY-MIX RECYCLING. SERVING THE READY-MIX & PRECAST INDUSTRIES WITH READY-MIX RECYCLING SOLUTIONS. Enviro-Port manufactures the world's highest quality, most durable and most dependable concrete reclaimer and Ready-Mix Recycling …

Experimental Study of Compressive Strength of Recycled ...


Total four concrete mix batches were tested in which one mix was of normal aggregate concrete at 0% replaced by RCA and other are of Recycled aggregate concrete at 20%, 40% and 60% replaced by RCA. The result of the test are shown in the table 1.The compressive strength of the specimens was calculated by following formula.

Study of recycled concrete aggregate quality and its ...


The SSD density of the recycled concrete aggregate ranges from 2150 to 2680 kg/m³. The density values of recycled coarse aggregate vary from 2280 to 2680 kg/m³, higher than that of fine aggregate. This recycled coarse aggregate presents an average value of 2397 kg/m³ for a particle size under 16 mm and 2458 kg/m³ when higher fractions are ...

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


Apr 20, 2009· I was asked to figure the piled density of some crushed concrete for a job I am working on. I recieved a sample and it is very clean and is about 2" to 3" pieces. I notice alot of brick mixed in. Using a pot of known density and lightly dumping the sample in the pot I ended up with a density …

UG-Mat Reclaimed Concrete Material | Recycled Materials ...


(5) One alternative to using aggregate is recycled concrete aggregate. Recycled concrete aggregate (RCA) consists of high-quality, well-graded aggregates (usually mineral aggregates), bonded by a hardened cementitious paste. The aggregates comprise approximately 60 to 75 percent of the total volume of concrete.

Publications - Materials Manual | WSDOT


Jun 25, 2020· Establishing Maximum Field Density for Recycled Concrete Aggregates by Test Point Evaluation. T 802 (PDF 1.2 ) Method of Test for Flexural Strength of Concrete (Using Simple Beam With Center-Point Loading) C 805 (PDF 193 KB) Rebound Hammer Determination of Compressive Strength of Hardened Concrete. T 807 (PDF 348 KB)

Recycled Concrete: The Pros and Cons


Recycled Concrete Aggregate (RCA) is one of the most commonly used recycled construction materials in NJ and its surrounding areas. The material can be used for a wide range of practical purposes. If you've been wondering if recycled concrete could be the right solution for your upcoming project, you likely have questions about the benefits ...

Standard Weights for Crushed Rock Per Meter | Hunker


Crushed aggregate, one-inch crushed concrete, recycled asphalt, 3/8-inch pea gravel, 2-inch sewer filter rock, and concrete and asphalt aggregate blends all weigh in at 1.07 tons. Pit run gravel follows at 1.25 tons per cubic meter, regardless of whether it is 2-inch or 4-inch.

Understanding the Density of Concrete • Aggregate Research ...


As for concrete itself, the density of concrete of normal weight is about 2,400 kg per cubic meter, or 145 lbs. per cubic foot. The concrete density varies depending on the amount and density of the aggregate, how much air is entrapped or purposely entrained, the cement concentration, and the …

Alex Fraser Group - Crushed concrete aggregates - Crushed ...


20mm Class 2 Recycled Crushed Concrete: Road base Brochure: Base material, bedding and backfill. MSDS: 2.01 t/m3: 12.0%: VicRoads 812 and VicRoads 815 (formerly VicRoads 820 & 821) 20mm Class 3 Recycled Crushed Concrete: Road base Brochure: Base/sub base material, hard stand areas, under concrete slabs, bedding and backfill. MSDS: 2.01 t/m3: 12 ...

Recycled Water - National Ready Mixed Concrete Association


Recycled water A concrete mixture was mixed in a 1 cubic foot mixer, tempered with water to a very high slump and water slurry was decanted over a 150 µm (No. 100 ... measured density. Concrete from these tests was returned to the mixer. The mixer was covered to prevent evapora-

Material Weight – Pounds per Cubic Yard


F:Truck Body Pricing & BrochuresExcelCubic_Yardage_Chart DCubic_Yardage_Chart D Rev A 6/9/2015 AGGREGATE TYPE

Recycled Concrete as Aggregate for Structural Concrete ...


Waste concrete for recycling: concrete cubes and precast column. Figure 2. Recycled material after (a) primary and (b) secondary crushing. a b Crushed concrete particles were separated into standard fractions of coarse aggregate (4–8 mm, 8–16 mm and 16–31.5 mm), as seen in Figure 3. Figure 3. Recycled concrete aggregate fractions.

Crushed Concrete Aggregate| Concrete Construction Magazine


Jun 30, 2011· Recycled concrete aggregate (RCA) refers to crushed concrete and other materials suitable for use as fill and compactible fill. ... Colo., says CCA is about 10% lighter than aggregate, due to its porosity and the presence of paste with lower density than traditional mineral aggregate. Thus, CCA—combined with the fine aggregate or ...

Maryland Recycled Aggregates | Laney Recycling


Recycled Concrete Aggregate Applications. Hardened concrete has characteristics similar to that of natural stone, which makes it suitable for most construction projects aggregates are used for. Often, concrete can be taken from a project, and then recycled and re-used in the same project.

Ways to Recycle and Reuse Concrete


Jan 07, 2019· Recycled concrete not only stays out of landfills, but it also replaces other materials such as gravel that must otherwise be mined and transported for use. Benefits of Concrete Recycling Recycling concrete helps reduce construction waste and extend the life of landfills as well as saving builders disposal or tipping fees.

Practical Considerations Related to the Use of Alternative ...


Recycled concrete that meets the above physical and chemical testing requirements and procedures should be acceptable for use as backfill with flexible structures. Other recycled aggregate/binder combinations such as brick and lime mortar or structural repair mortars that use pea gravel and magnesium phosphate, epoxy, or polyurethane binder ...

Technical Information Sheet CLASS 4 CRUSHED CONCRETE


the amount of concrete in the product. Composition is in accordance with VicRoads specifications and Alex Fraser's mix designs registered with VicRoads. Particle size: Can also be produced to 40mm on request. Technical Information Sheet CLASS 4 CRUSHED CONCRETE TAKE THE DENSITY ADVANTAGE CHALLENGE TODAY. COMPARE AND CALCULATE YOUR COST SAVINGS.

Density of Aggregate - Bulk and Relative Density - Civil ...


The approximate bulk density of aggregate that is commonly used in normal-weight concrete is between 1200-1750 kg/m 3 (75-110 lb/ft 3). Here, the Standard test method for determining the bulk density of aggregates is given in ASTM C 29 (AASHTO T 19).

Summary of Testing of Recycled Crushed Concrete


Summary of Testing of Recycled Crushed Concrete RICHARD W. PETRARCA and VINCENT A. GALDIERO ABSTAACT To investigate the performance of recycled concrete aggregates (RCA), physical test data from 1977 through 1982 are summarized ... density test (ASTM Dl557). 3, Field samples were obtained each week from

Recycled Concrete Road Base Compaction - Soil testing ...


Dec 05, 2006· This can shift the maximum density thereby making compaction very difficult to obtain. RE: Recycled Concrete Road Base Compaction eric1037 (Geotechnical) 7 Nov 06 09:53. ... The material I was testing was crushed concrete, kind of reddish brown. I did the mod. proctor on it myself and came up with 124.7 p.c.f. at 10.7 percent moisture.

Recycled Concrete Aggregate Federal Highway Administration ...


Recycled Concrete Aggregate Federal Highway Administration National Review Purpose/Objectives: The purpose of this review is to capture for technical deployment the most advanced uses of recycled concrete aggregate and then transfer the knowledge with all State Transportation Agencies (STA).

Mechanical Properties Of Recycled Aggregates Concrete


2.6 Recycled Concrete as Aggregate for Structural Concrete Production. ... Bulk density of fresh concrete is slightly decreased with increasing quantity of recycled aggregate. The type of coarse aggregate has no influence on the air content in concrete. Concrete compressive strength mainly depends on the quality of recycled aggregate.

Recycled Concrete - an overview | ScienceDirect Topics


Due to reduced porosity of the attached cement paste, the quality of the carbonated recycled aggregates gets improved in terms of increased density and reduced water absorption and aggregate crushing value, which play an important role in the quality of fresh and hardened mortar or concrete (Zhang et al., 2015a,b; Shi et al., 2016).

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


By using packing density mix design method, recycled aggregated concrete strengths fluctuation can be resolved, and the concretes can have similar strengths consistency, regardless the recycled ...

#57 Rock Crushed Concrete - Gravelshop.com


Pricelist: Prices #57 Rock Crushed Concrete; Density: 1 ton = 0.83 cu yd / 1 cu yd = 1.2 ton; Coverage: 0.62 cu yd covers 100 sq ft 2 inch deep; Coverage: 1.54 cu yd covers 100 sq ft 5 inch deep; Estimator: Coverage Calculate #57 Rock Crushed Concrete

Rubber concrete: Mechanical and dynamical properties ...


Natural sand in the concrete mixes was partially replaced by 5%, 10%, 15%, and 20%. Physical properties such as the density, the compressive strength, the fresh concrete properties, the split-tension, and the impact load capacity are examined. The results revealed a decrease in the compressive strength of concrete cylinders containing rubber.

The Mechanical Properties of Recycled Coarse Aggregate ...


Using recycled coarse aggregate (RCA) to replace natural pebbles and using lithium slag (LS) from industrial waste to replace cement in order to improve the mechanical properties of concrete and solve environmental problems. In this study, the effects of different substitution rates of RCA (0, 30%, 50%, and 70%) and different LS contents (0, 10%, 15%, 20%, and 25% ...