Estimate the volume of asphalt needed, using geometrical formulas and plans or measurements, including width, length, and depth (thickness). Estimate the density of the hotmix...

Standard asphalt density is 145lbs/ft3 or 2322kg/m3. The asphalt unit weight is 2243 per cubic meter. Therefore 2.4 ton of asphalt = 1 cubic meter. 1 cubic yard of hot asphalt mix weighs 2.025 tons or 4050 lbs. These measurements are an approximation and therefore when you are ordering the quantity ensure that you add more asphalt to gather for ...

Why thickness measurement in road construction is essential for the quality of the road In road construction, there is an infinite number of pinwheels to make the process as perfect as possible. Everything has to be considered and taken into account, starting with the planning, the tendering process, the specification of machines and staff, the ...

First, detect the metal reflector using the StratoTest gauge. Then, the measuring probe is positioned over the reflector and layer thickness is displayed immediately. Thickness gauge for asphalt layers in road construction: StratoTest 4100 made by ElektroPhysik Germany.

Of the aforementioned practices, GPR seems to be the most successful for asphalt layer permittivity and thickness measurement, whereas there haven't been enough satisfactory results for GPR to predict the density or moisture content in asphalt mixture based on dielectric property so far.

12 Impact of Asphalt Thickness on Pavement Quality fine graded 9.5-mm mix was compacted to 96.5% of laboratory density at the optimum t/NMAS ratio of 4.6:1 but the density was only 94.3% when the ratio was 2:1. For coarse gradations the impact was even greaterâ a decrease of 4.8% (Brown et al., 2005).

Abstract: Pavement asset management requires accurate and rapid measurement of asphalt layer thickness for reliable backcalculation of modulus values of pavement layers from nondestructive deflection tests. Also needed are measurements of layer delamination, surface cracking, and other distresses. Top-down cracking in the longitudinal wheel path of thick asphalt highway …

Asphalt Pavement Thickness Measurement Using the Seismic Reflection Technique Sid Ahmed Remmani, Aziman Madun, Nurul Hidayah Binti Mohd Kamaruddin Abstract: subsurface profile mapping is achieved using variant geophysical methods, the commonly used method is the seismic reflection. Stiffness change between layers produces reflected waves.

Paving standard asphalt; Imagine I want to pave over an area measuring 20 feet by 4 feet to a thickness of 6 inches using standard asphalt (140 lb/ft³) and costing $150 per US short ton. I want to have an estimate for the volume of asphalt required, along with its weight in tons and total cost.

Asphalt paving is applied with paving machines that apply an even thickness of the asphalt paving material. That application is called a "lift," by pavers. Ranging from 2 ½" to 3″ thick, each lift is compacted after application by a heavy roller compactor. For heavily-traveled roads, which must bear the constant weight of hundreds of ...

Coating thickness measurement of asphalt and other road layers. ElektroPhysik's asphalt layer thickness measuring device StratoTest 4100 doesn't use with the standard core drill method which damages the construction layer. Thanks to its innovative measuring procedure, measurements of asphalt, slag, gravel and concrete layers in road ...

That measurement is your fluff factor. That measurement must reflect the exact amount you've built in for compaction. Now let's talk about calculating yield. Determining how far a load of asphalt mix will go takes a quick bit of math, but it's vital to making sure you don't run over on the job.

When it comes to asphalt paving thickness, there are a few schools of thought. Some asphalt contractors will go with a thinner finished product to save cost and charge customers less for their work. That's where the idea that 2 inches of asphalt is enough for a driveway came from.

4.1 The thickness of a compacted asphalt mixture is often used as a construction check to ensure that the proper quantity of materials has been placed on a project, and to correct strength measurement on constant diameter specimens with varying heights.

Asphalt was placed on top of the base, so that four slabs of different nominal thickness (50, 100, 150, and 200 mm) were available for testing. This arrangement was repeated a second time with a different asphalt mix. The actual thickness values were confirmed by cores and were found to deviate by up to 19 mm from these nominal values.

Asphalt Base Construction The asphalt base course material should be placed directly on the prepared subgrade in one or more lifts. It should be spread and compacted to the thickness indicated on the plans. Compaction of this asphalt base is one of the most important construction operations contributing to the proper performance of the ...

A-3 Measure with a ruler, to the nearest 1/8 in. (3 mm), the thickness of the pavement course. Make four measurements, along the edge of the core at 90° intervals. A-4 Assign a number to the core and record the core number, date drilled, station, transverse

For asphalt pavement, ground penetrating radar (GPR) is by far the most established technology for measuring pavement thickness. Evaluation studies have been carried out by over ten state highway agencies, by SHRP, MnROAD, and by the FHWA, all of which have documented the accuracy of GPR asphalt thickness vs. core samples (2)(3).

Table 4-4.Thickness Design: Low Volume Secondary and Rural Roads A. For Asphalt Concrete Base Pavements Thickness in Inches Design Criteria* Asphalt Concrete Traffic Class Subgrade (ADT) Class CBR Base Surface Total II Good 9 4.0 1.0 5.0 (50-200 ADT) Moderate 6 5.0 1.0 6.0 Poor 3 5.5 1.5 7.0 III Good 9 4.0 1.5 5.5 (201-700 ADT) Moderate 6 5.0 1 ...

Standard Guide for General Pavement Deflection Measurements: D4748 - 10(2020) Standard Test Method for Determining the Thickness of Bound Pavement Layers Using Short-Pulse Radar: D5858 - 96(2020) Standard Guide for Calculating In Situ Equivalent Elastic Moduli of Pavement Materials Using Layered Elastic Theory: D6951 / D6951M - 18

The objective of this study was to investigate the concept of asphalt binder film thickness experimentally on the basis of measurements obtained by image analysis techniques, reflective light ...

Asphalt Treated Base Class I 0.34 4 Bituminous Treated Aggregate Base 0.23 6 Asphalt Treated Base Class II 0.26 4 Cold‐Laid Bituminous Concrete Base 0.23 6 Cement Treated Granular (Aggregate) Base. 0.20 6 Soil‐Cement Base 0.15 6 Crushed (Graded) Stone Base 0.14 6 Macadam Stone Base 0.12 6

4.1 The thickness of a compacted asphalt mixture is often used as a construction check to ensure that the proper quantity of materials has been placed on a project, and to correct strength measurement on constant diameter specimens with varying heights.

Asphalt driveway thickness depends on the soil that's being paved on and the industry standards of the region you live in. What is the soil like in the region you live in? Here in Denver Colorado, we have two types of soils we pave on. The first, on the front range, the soils tend to be expansive soils so most contractors excavate and install 3 ...

Measurement: Measurement will be in square yards for each different thickness of HMA pavement that has deficient pavement thickness as determined in Section 7020, 3.04. 2. Payment: Payment will be at the percentage of the unit price indicated in Table 7020.03 for each different thickness of HMA pavement.

Achieving desired density is crucial for thin asphalt concrete (AC) overlay construction quality control and quality assurance purposes. Ground penetrating radar (GPR) can be implemented for AC pavement layer thickness and density prediction during compaction. However, the overlapping of GPR reflections from surface and bottom of the thin AC overlay, as well as the presence of surface …

Para 4.5.2 for asphalt substitution/ soil stabilisation: Section 4.6 for recycled materials Flexible (Para 6.1) Use Appendix B1 for total asphalt thickness Section 4 Foundation design Composite Hydraulic bound (Para 6.3) Use Appendix B4 for thickness of roadbase and total asphalt based on knowledge of material properties and cost

Note paragraph 3.1 from the standard reads: 3.1 Samples obtained in accordance with the procedure given in this practice may be used to measure pavement thickness, density, resilient or dynamic modulus, tensile strength, Marshall or Hveem stability, or for extraction testing, to determine asphalt content, asphalt properties and mix gradation.

Measuring range between 0 and 400 mm to measure the base and covering layers in road construction; N 800ST Measuring range between 0 and 800 mm for landfill caps. Application. Non-destructive thickness measurement of non-magnetic layers in the field of construction, e.g.: Asphalt, slag, gravel and concrete layers in road construction

The thickness of the asphalt can either be stated as pre-comapction or post-compaction, it can be hard to know which is being used on a quote. Most engineering plans will call for a specified post-compaction thickness, if the contract is written to provide work based on an engineered specification then most likey the quoted thicknesses will be ...

The HM-591 Asphalt Depth Gauge makes accurate asphalt thickness measurements quickly, and measures in inches. Depth measurements up to 11-3/4in (298mm) in 1/4in increments can be made from the back of the paver or curbside with no need to step directly on hot asphalt.

Asphalt Calculator These calculators are designed to give approximate amounts only. They will help you determine the quantity you need; however, variations in subgrade, compaction of subgrade, or inaccurate measurements, even a quarter of an inch, can make a difference. width feet length feet thickness inches hot mix tons