ASTM C1777 - 20 Standard Test Method for Rapid ...
For example, a fine aggregate with high methylene blue value measured by the AASHTO method but low percentage passing the 75 μm sieve may have less effect on concrete performance than a fine aggregate with low methylene blue value measured by the AASHTO method but a high percentage passing the 75 μm sieve.
Methylene Blue Value Determination Test Approved by ASTM ...
ASTM C1777, Methylene Blue Value C1777 provides a rapid test for laboratory and field use to determine the amount of methylene blue adsorbed by a specimen of fine aggregate or mineral filter “The test in ASTM C1777 will be used to distinguish between harmful and non-harmful fines in concrete aggregate,” says Eric Koehler, vice president, Verifi LLC, and a C09 member.
Methylene Blue Value for Fine Aggregate and Mineral Filler ...
WK36804, Test Method for Rapid Determination of the Methylene Blue Value for Fine Aggregate and Mineral Filler, is being developed by Subcommittee C09.20 on Normal Weight Aggregates, part of ASTM International Committee C09 on Concrete and Concrete Aggregates. According to Eric Koehler, research and development director, W.R. Grace and Co., once approved, WK36804 will be used to …
specification for methylene blue value for fine aggregate ...
Nov 20, 2012 · specification for methylene blue value for fine aggregate for concrete. As a leading global manufacturer of crushing and milling equipment, we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant.
Effect of clay in fine aggregate - The Concrete Society
The Methylene blue test (BS EN 933-9) provides an assessment of the quantity of clay in a sample of rock or aggregate. No limits are given in UK standards as it is not considered sufficiently precise for the purpose of determining harmful fines content, see BS EN 12620 Annex D. The French National Standard has a limit of 1%.
APPLICATION OF THE MODIFIED METHYLENE BLUE TEST TO …
minerals in the aggregate fines were used to make Portland cement concrete to see how they performed as the coarse aggregate fraction of the mixes. Through extensive methylene blue and concrete performance testing, the aim was to establish a threshold methylene blue value (MBV) that corresponds with the maximum permissible clay
Cement Standards and Concrete Standards
Standard Test Method for Rapid Determination of the Methylene Blue Value for Fine Aggregate or Mineral Filler Using a Colorimeter: C1797 - 17: Standard Specification for Ground Calcium Carbonate and Aggregate Mineral Fillers for use in Hydraulic Cement Concrete
New Test Method for Assessing Fine Aggregate | Agg-Net
For these reasons, the correlation of SE values and concrete performance can be suspect. Methylene blue value (MBV) is a well-established method to determine the presence of clay minerals in aggregates. It involves reacting deleterious clay fines with a blue dye and measuring dye uptake, as a colour change, to estimate clay contamination.
New Test Method for Assessing Fine Aggregate
Fine aggregates in Australi a must comply with AS2758.1.1In light of this specification, in 2007 Cement Concrete Aggregat es Australia (CCAA) made significant efforts to determine the applicability of this standar d towards manufactured sands.2-6I t recommends several useful tests including sand equivalent a nd methylene blue value.
Sand Equivalent - Pavement Interactive
This test adds quantities of a standard aqueous solution of methylene blue (MB) dye (Figure 2) to a sample of dry fine aggregate passing the No. 200 (0.075 mm) sieve until adsorption of the dye ceases. The MB solution is titrated step wise in 0.5 ml increments from the burrette into a continually stirred fine aggregate suspension.
Sand equivalent and methylene blue value of aggregates for ...
Specification limit values for the sand equivalent ... with increasing of the methylene blue value of the all-in aggregate (MBA) from 0.4 to 4.5 g/kg. ... This test was determined in the fine ...
Standard Test Method for Sand Equivalent Value of Soils ...
Note 1: For fine aggregates containing clean dust of fracture (clay-size particles that are not clay minerals), test results will depend on the amount of fines present in the material. In this case other tests such as Methylene Blue Value (AASHTO T330) or X-Ray Diffraction (XRD) may be needed to determine if the fines are deleterious.
Chemical Analysis of Concrete | AET Testing Laboratory
ASTM C1777 Standard Test Method for Rapid Determination of the Methylene Blue Value for Fine Aggregate or Mineral Filler Using a Colorimeter ASTM D50 Standard Test Methods for stone Analysis of Yellow, Orange, Red, and Brown Pigments Containing Iron and ManganeseASTM D512 Chloride Ion in Water
5 Aggregate Specifications and Requirements
904.02 places a restriction for fine aggregate for use in portland cement concrete and mortar. No restrictions are placed on organic impurities in fine aggregate for use in other types of construction. The limitations on the amount of organic impurities allowed in fine aggregates are determined by the test method for organic impurities
Relationship between methylene blue values of concrete ...
Apr 15, 2008 · In this study, methylene blue values were determined in fine aggregate samples used to produce ready-mixed concrete. Samples were taken from four different aggregate quarries, and relationships between methylene blue values of the concrete samples produced with these aggregates and some of their properties were investigated.
sand equivalent requirements in concrete aggregates ...
Dec 09, 2012 · specification for methylene blue value for fine aggregate for concrete. Methylene Blue Value for Fine Aggregate and Mineral Filler ... (2012) : Standard Specification for Fiber-Cement Roofing ... Test Method for Rapid Determination of the ...
Methylene Blue Powder for Fine Aggregate Testing - Gilson Co.
The Methylene Blue Value (MBV) of fine aggregate is a measure of the amount of potentially harmful fine material present such as clay and organic material. The MBV is simply a measure of the amount of reagent absorbed and is proportional to the amount of clay or organic material present.