average density of hot mix asphalt

Hot Mix Asphalt (HMA) In-Place Pavement Density Data ... Route # Gauge Offset: Operator's Name: Project Target Density (PTD: Max. Avg. Single Test (1.03*PTD): Min. Avg. Single Test ... Date of Paving Station No. Lane Offset Pavement Quality Indicator (PQI) Density Measurements (kg/m³) Average PQI Density Inspector's Initials (if test ...

2013年2月1日 — Due to this, a lower SSD mass is obtained, and the air voids content of the sample is underestimated. 1.2 Problem Statement. With the adoption of ...

IN-PLACE HOT MIX ASPHALT DENSITY ESTIMATION USING GROUND PENETRATING RADAR AND 3-D FINITE ELEMENT ANALYSES By Imad l. Al-Qadi Zhen Leng Al …

quality levels with an average of 95.00. Mat density has the next best results with an average of 92.89. Air voids and percent asphalt are third and fourth with average quality levels of 90.41 and 89.86. Joint density testing has been a requirement beginning in 2003. The pay factor for this element is just under 1.0 but is expected to increase as

This test method provides procedures for determining the average in-place density and relative compaction of hot mix asphalt (HMA). It may be applied to HMA having a compacted thickness of at least 0.10 ft. The test method includes six parts: 1. Standardization and Calibration of the Nuclear Density Gage 2. Correlation with Core Densities 3.

Many road builders and just people who want a nice driveway to their home are faced with estimating the amount of Hotmix Asphalt (HMA, also bitumen, blacktop, Tarmac) they need to cover a given area with it. Our asphalt calculator is of great utility in such cases, but you should keep in mind that the results will only be as good as the measurements entered into it. Also, we use a standard asphalt density of 145 lbs/ft3 (2322 kg/m3) which may be somewhat different depending on the precise asphal

Hot Mix Asphalt Pavements, Density, Nuclear Gauges, ... lb/ft3 of the average of the Initial Test readings, the gauge passes the test; if, not, it fails the test. 9 ...

Density of Hot Mix Asphalt (HMA) Specimens by Means of the. SHRP Gyratory Compactor. TP4. AASHTO T 166, Bulk Specific Gravity of Compacted Bituminous ...

AASHTO T 166; Bulk Specific Gravity of Compacted Hot Mix Asphalt (HMA) ... to AASHTO T 331 test method for Bulk Specific Gravity and Density of Compacted Hot Mix Asphalt ... equally spaced locations and average the four measurements.

The research is documented in Report 1757-1: Density Evaluation of the Longitudinal Construction Joint of Hot-Mix Asphalt Pavements. Research Supervisor: Cindy K. …

They related the problem to a differential in temperature of the hot mix asphalt (HMA) mass in the trucks developed in transport from the HMA manufacturing facility ...

Asphalt Rubber Methods of adding rubber to asphalt – Wet Process – rubber is added to the liquid asphalt binder before being mixed at the hot mix asphalt plant (i.e., rubber is wet before mixing) – Dry Process – rubber is added at the same time the asphalt and aggregate are mixed (i.e., rubber is dry before mixing)

2017年7月19日 — (2007), Hot Mix Asphalt Materials, Mixture Design and Construction (2009), ... place average density level of 92 to 93 percent of Gmm (i.e., the ...

Pavement Density: Monitor the pavement temperature with an infrared ... determining the spread rate, use, at a minimum, an average of five truckloads of mix. 4.

For example, if four spot tests of density on a mile of compacted asphalt pavement reveal a mean ...

2016年11月1日 — Compaction and Density of Hot Mix Asphalt ..................... 2 ... Figure 3 Average Density by Core, NDG & PaveTracker (Romero 2002). Studies in ...

Guidelines for the Design of Hot-Mix Asphalt (IGDHMA) in South Africa. This move is in line with international best practice and also enables the formulation of national specifications that will reasonably ensure that asphalt layers will perform as expected.

2016年3月7日 — REQUEST FOR BIDS - HOT MIX ASPHALT PAVING ... the lot or sublot if either the lot pavement density (average of all lot gauge readings or.

The density produced during the mix design should not be used as the reference density since the laboratory properties will be somewhat different from test results on plant produced materials.Sometimes aggregates break down during mix production,creating an increase in dust,thus altering the properties of the compacted asphalt mixture.

Calculated Target Density Results (test section average %) Date Mix Core Nuclear PQI Pavetracker 8/9/2005 S 12.5 D 92.1 90.2 88.5 82.7 8/10/2005 S 12.5 D 92.3 90.6 88.7 82.9 8/23/2005 RS-9.5 C 86.4 83.1 83.3 78.5 ... Evaluation of Non-Destructive Density Testing Devices on Hot Mix Asphalt ...

2.2 Percent Density or Percent Compaction—the ratio of the actual G a of the compacted bituminous mixture specimen to the theoretical maximum specific ...

Anchor: #i1013899 Section 6: Hot-Mix Asphalt Pavement Mixtures Anchor: #i1013905 6.1 General. Hot-mix asphalt (HMA) is a generic term that includes many different types of mixtures of aggregate and asphalt cement (binder) produced at elevated temperatures (generally between 300-350ºF) in an asphalt plant.

Density of Hot Mix Asphalt (HMA). Specimens by ... AASHTO PP 28 based on the average bulk specific gravity from two gyratory specimens and the MSG for the ...

The specific gravity at 15.6 ° C (60 ° F) is commonly used when buying/selling asphalt cements. A typical specific gravity for asphalt is around 1.03. Related Tests. AASHTO T 228 and ASTM D 70: Specific Gravity and Density of Semi-Solid Bituminous Materials

We investigate density profile of hot mix asphalt layer during compaction. • The higher the mix temperature the better density could be attained. • The optimum t/NMAS for best compactibility is between 3.0 and 5.0.