The calculation for moisture content (P) is as follows: P = 100 (W - D) D where: P = moisture content of sample, % W = original wet weight of sample, gms D = dry weight of sample, gms Example: W = 546.2 gms. D = 541.2 gms P = 100 (546.2 - 541.2) 541.2 P = 500 541.2 P = 0.92%, record as

% surface moisture, (SSD) = wet wt. - SSD wt. SSD wt. X 100 SSD wt. = oven dry wt. X (100 + absorption) 100 SSD wt. = 95.0 X 102 100 = 96.9 g % surface moisture, (SSD) = 100

8.1 Calculate total evaporable moisture content as follows: p 5 100 ~W 2 D!/D (1) where: p 5 total evaporable moisture content of sample, percent, W 5 mass of original sample, g, and D 5 mass of dried sample, g. 8.2 Surface moisture content is equal to the difference between the total evaporable moisture content and the absorp

TOTAL EVAPORABLE MOISTURE CONTENT OF AGGREGATE BY DRYING FOP FOR AASHTO T 255 Scope This procedure covers the determination of moisture content of aggregate in accordance with AASHTO T 255-00. It may also be used for other construction materials. Overview Moisture content is determined by comparing the wet mass of a sample and the mass of the

Total Moisture Content: - Is the water present in the aggregate either inside the pores or at the surface. - The total weight of water present, expressed as a percentage of the oven-dry weight. Aggregate Moisture: Absorbed water : water present in the pores of porous aggregate particles. Surface water : water present on the surface of aggregate particles (also called

AASHTO T 255 / ASTM C566 Standard Method of Test for Total Evaporable Moisture Content of Aggregate by Drying Terms in this set (14) For most purposes, this test method measures the moisture in a test sample more reliably than the test sample

The sample is dry when there is less than 0.1 percent difference between the weights. Record the weight of the sample and container to the nearest 0.1 g. CALCULATIONS: 1. Moisture content of aggregate: P = W - D x 100 D - C where: P = percent moisture, W = weight of wet aggregate and container, D = weight of dry aggregate and container, and

Total Evaporable Moisture Content and Surface Moisture Content of Aggregates by Drying . 1. SCOPE. 1.1 This procedure covers the determination of the percentage of evaporable moisture in a sample of aggregate by drying both surface moisture and the moisture in the aggregate. To beused in the field to determine the percentage of surface moisture

OF AGGREGATE BY DRYING AASHTO T 255 SCOPE The moisture content in aggregate is used to determine the binder content for HMA during production of the mixture in a plant. The procedure requires that a known amount of aggregate be obtained, the aggregate heated to remove the moisture, and the percentage of moisture determined

TOTAL EVAPORABLE MOISTURE CONTENT OF AGGREGATE BY DRYING . FOP FOR AASHTO T 255 LABORATORY DETERMINATION OF MOISTURE CONTENT OF SOILS FOP FOR AASHTO T 265 . Participant Name _____ Exam Date _____ Record the symbols “P” for passing or “F” for failing on each step of the checklist

1. Scope. 1.1 This test method covers the determination of the percentage of evaporable moisture in a sample of aggregate by drying both surface moisture and moisture in the pores of the aggregate. Some aggregate may contain water that is chemically combined with the minerals in the aggregate. Such water is not evaporable and is not included in

Total Evaporable Moisture Content of Aggregate by Drying. WAQTC FOP for AASHTO T 255 has been adopted by WSDOT with the following changes: Sample Preparation. ABLE 1 Sample Sizes for Moisture Content of Aggregate T – Shall conform to the following nominal . maximum size definition and include the note below

Jan 17, 2019 ASTM C566, “Standard Test Method for Total Evaporable Moisture Content of Aggregate by Drying,” is applicable to both fine or coarse aggregate and is the most commonly used procedure. ASTM C70 , “Standard Test Method for Surface Moisture in Fine Aggregate,” is another test method but is only for use on fine aggregate

Jun 21, 2019 Jun 21, 2019 ASTM C – 13 – Standard Test Method for Total Evaporable Moisture Content of Aggregate by Drying. Probes can be placed in bins just under the discharge gates and above the weigh belt or directly in the path of the aggregates after they have dropped onto the belt. Probes can also be placed in the mixer. For specific precautionary statements

ASTM DESIGNATION ASTM C566 – Standard Test Method for Total Evaporable Moisture Content of Aggregate by Drying II. OBJECTIVE To determine the percentage of evaporable moisture in a sample of aggregate by drying, both surface moisture and moisture in the pores of aggregate. III. APPARATUS Balance, 0.1 g accuracy Air tight container or