• Permissible Levels of Chlorides and Sulfates in Aggregate

    Q. We're designing a concrete structure in Egypt, and I received test results for the aggregate to be used in the concrete. The report lists chloride and sulfate content, but I don't know how to evaluate these numbers because ASTM C 33, "Standard Specification for Concrete Aggregates," doesn't give limits for them.

  • sulfate contents in fine aggregate fo concrete

    RCA can be used as an aggregate for cement-treated or lean concrete bases.. Workability : If fine RCM aggregates are used, concrete workability . Limits on chloride and sulfate contents of concrete materials are well established. Read more

  • sulfate contents in fine aggregate fo concrete

    Effect of Different Coarse Aggregate Sizes on the Strength up to laterite contents, the workability and compressive strength values of laterized concrete with laterite-fine aggregate ratio variation decreases wetting and drying and increases when subjected to magnesium sulphate (Mg2SO4).

  • Sulfate Contents In Fine Aggregate Fo Concrete

    Sulfate Contents In Fine Aggregate Fo Concrete. We are a large-scale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment, milling equipment, mineral processing equipment and building materials equipment.

  • Sulfate Attack and Sulfate Content in Concrete: A

    Jan 14, 2017· Internal sulfate attack occurs when a source of sulfate is incorporated in the concrete when mixing like excess gypsum in cement, sulfate in the aggregate, water or admixture, and contamination.

  • Sulfate in concrete

    The current Standard for specifying concrete, BS 8500 Concrete does not have a limit to the sulfate content in concrete. If there were a limit many lightweight and blastfurnace slag aggregates, with long histories of satisfactory use, may be excluded. However, specifications for many constituent materials (aggregates, cement etc) place limits

  • (PDF) SULFATES EFFECT IN FINE AGGREGATE ON SELF

    One of the important problems in fine aggregate is the contaminated with interior sulfates in manufacturing concrete in Iraq. Within standard specifications a difficult to obtain of well-graded fine aggregate with sulfates content is existed. The

  • sulfate sulphate content aggregates washing Fruitful Mining

    Dec 17, 2012· sulfate sulphate content aggregates washing Grinding Mill China. sulfate contents in fine aggregate fo concrete Aggregate mining and washing stone; Aggregate mining in vietnam The report lists chloride and sulfate content »More detailed

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  • 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

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  • sulfate contents in fine aggregate to concrete

    sulfate contents in fine aggregate to concrete. The sulfate content in fine aggregate contains sulfate higher than the acceptable limits in most of the fine aggregate in Middle East countries Al-Kadhimi and Hamid 1983 Al-Ameeri and Issa 2013 results show that the fresh properties such as decreased workability of self-compacting concrete is passively influenced from sulfate

  • 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

  • Sulphate content of fine aggregates

    Sulphate content of fine aggregates Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Sulphate content of fine aggregates, quarry, aggregate, and different kinds of minerals.

  • sulphate content in the combined aggregate

    sulfate sulphate content aggregates washing Fruitful Mining. Dec 17, 2012· sulfate sulphate content aggregates washing Grinding Mill China. sulfate contents in fine aggregate fo concrete Aggregate mining and washing stone; Aggregate mining in vietnam The report lists chloride and sulfate content »More detailed

  • sulfate contents in fine aggregate to concrete

    sulfate contents in fine aggregate to concrete. The sulfate content in fine aggregate contains sulfate higher than the acceptable limits in most of the fine aggregate in Middle East countries Al-Kadhimi and Hamid 1983 Al-Ameeri and Issa 2013 results show that the fresh properties such as decreased workability of self-compacting concrete is passively influenced from sulfate also the .

  • 4 Aggregate Specifications and Requirements

    Fine Aggregates The fine aggregate, including blended fine aggregate, used in HMA Surface 4.75 mm mixtures is required to have an acid insoluble conten t of not less than 40 percent. For air-cooled blast furnace sl ag or granulated blast furnace slag sand, the acid insoluble content is required to not be less than 25 % for this application.

  • Sulfate attack in concrete Understanding Cement

    Sulfate attack in concrete and mortar. Sulfate attack can be 'external' or 'internal'. External: due to penetration of sulfates in solution, in groundwater for example, into the concrete from outside. Internal: due to a soluble source being incorporated into the concrete at the time of mixing, gypsum in the aggregate, for example. External sulfate attack

  • BS EN 12620:2013 Aggregates for concrete

    BS EN 12620:2013 Aggregates for concrete. BS EN 12620:2013 specifies the properties of aggregates and filler aggregates obtained by processing natural, manufactured or recycled materials and mixtures of these aggregates for use in concrete in conformity with BS EN 206-1 and concrete used in roads and other pavements and for use in precast concrete products.

  • Sulfate Contents In Fine Aggregate Fo Concrete

    sulfate contents in fine aggregate to concrete of Water Extract Sulphate Content in Aggregate Test Method for Organic Impurities in Fine Aggregates for Concrete rural and eduional construction >>Get Price Pre-normative research on the use of mixed . » Learn More. sulfate contents in fine aggregate fo concrete. sulfate contents in fine aggregate .

  • SOUNDNESS OF AGGREGATE USING SODIUM SULFATE OR

    SOUNDNESS OF AGGREGATE USING SODIUM SULFATE OR MAGNESIUM SULFATE TXDOT DESIGNATION: TEX-411-A CONSTRUCTION DIVISION 6 11 EFFECTIVE DATE: OCTOBER 2004 Table 4—Sample Size Fractions Item Sieve Passing Sieve Retained Weight, g Concrete Aggregate 19.0 mm (3/4 in.) 12.5 mm (1/2 in.) 670 10

  • Aggregates for Concrete Civil Engineering

    crushed aggregate requires slightly higher values. Fine aggregate content is usually 35% to 45% by mass or volume of the total aggregate content. CHARACTERISTICS OF AGGREGATES. The important characteristics of aggregates for concrete are listed in Table 5-2 and most are discussed in the following section: Grading

  • Analysis of total chloride content in concrete ScienceDirect

    Total chloride or acid-soluble chloride in concrete depends on the chloride content in concrete mix ingredients. The precise amount of chloride that is contributed by each element of the concrete mix compositions is hard to be defined because the chloride contents in aggregate and in concrete mixture as a whole are not equally distributed.

  • Aggregate in Concrete The Concrete Network

    Fine aggregate should fall within gradation limits provided in ASTM C 33, Section 6. If there is a deficiency in a locally available fine aggregate, concrete may benefit from the addition of air entrainment, additional cement, or a supplemental cementitious material (SCM) to

  • reduce sulphate content in aggregates

    Mechanical Properties Of Recycled Aggregates Concrete . Aggregates content is a factor which has direct & far reaching effects on the both quality & cost of concrete unlike water and cement, which do not alter any particular characteristics except in the quantity in which they are used, the aggregate component is infinity variable in terms of shape & grading With fine aggregates, graded below

  • Types of Sulphate Attack in Concrete- Influences and Sources

    Damage to the concrete occurs when the ettringite crystals exert an expansive force within the concrete as they grow. Source of Internal Sulphate Attack . Sulfate ions in the concrete ingredients like cement, water, aggregate and admixture are the reason for internal sulfate attack. Effect of Internal Sulphate Attack on Concrete

  • Analysis of total chloride content in concrete ScienceDirect

    Hence, the limits of total chloride content in concrete could be violated even though the limits of chloride content for mix ingredients are satisfied. Therefore, it can be stated that chloride limits of concrete ingredients and total concrete

  • Aggregate in Concrete The Concrete Network

    Fine aggregate should fall within gradation limits provided in ASTM C 33, Section 6. If there is a deficiency in a locally available fine aggregate, concrete may benefit from the addition of air

  • reduce sulphate content in aggregates

    Mechanical Properties Of Recycled Aggregates Concrete . Aggregates content is a factor which has direct & far reaching effects on the both quality & cost of concrete unlike water and cement, which do not alter any particular characteristics except in the quantity in which they are used, the aggregate component is infinity variable in terms of shape & grading With fine aggregates

  • Types of Sulphate Attack in Concrete- Influences and Sources

    Source of Internal Sulphate Attack . Sulfate ions in the concrete ingredients like cement, water, aggregate and admixture are the reason for internal sulfate attack. Effect of Internal Sulphate Attack on Concrete

  • sulfate contents in fine aggregate fo concrete

    May 10, 2017· The sulfate content in fine aggregate contains sulfate higher than the acceptable limits in most of the fine aggregate in Middle East countries (AlKadhimi and Hamid, 1983) (AlAmeeri and Issa,2013) results show that the fresh properties such as decreased workability of selfcompacting concrete is passively influenced from sulfate

  • Concrete with Copper Slag Fine Aggregate. Request PDF

    Concrete with Copper Slag Fine Aggregate. of CS aggregate on the sulfate attack resistance and strength due to free H2O content increase in the mixture. Concrete

  • Reclaimed Concrete Material User Guideline Portland

    Reclaimed concrete material (RCM) can be used as coarse and/or fine aggregate in Portland cement concrete (PCC) pavements. However, concrete incorporating more than about 10 to 20 percent fine RCM aggregates can suffer a reduction in quality because of the high amount of water required to maintain adequate workability of the concrete

  • Aggregates for Use In Concrete

    of Concrete Cement Content Proportions Fine Coarse Salt Fine Aggregate . 2/12/2015 4 7 Aggregates Table 1 Limits for Deleterious Substances in Fine Aggregate for Concrete, ASTM C 33. * In the case of manufactured sand, if the material finer than the 75-micron (No. 200) sieve consists of Sodium or Magnesium Sulfate

  • Standard Test Method for Soundness of Aggregates by Use of

    1.1 This test method covers the testing of aggregates to estimate their soundness when subjected to weathering action in concrete or other applications. This is accomplished by repeated immersion in saturated solutions of sodium or magnesium sulfate

  • sulphate content of fine aggregates

    In the present study effects of replacement of fine aggregate (sand) with high . fine aggregate with iron slag better sulfate resistance due to lower C3A content. asphalt sand and .. specified for the sulphate content of aggregates for concrete. This is. More details » Get Price. Sample Specification For Concrete

  • Chemical Requirement of Aggregates as per European

    The acid-soluble sulfate content of the aggregates and filler aggregates for concrete determined in accordance with EN 1744-1:1998, clause 12, shall be declared in accordance with the relevant category specified in Table 20. Carbonate content of fine aggregates for concrete

  • Sulfate attack in concrete and mortar Wikipedia

    Sulfate attack in cement, mortar and concrete. Cement is composed of mainly two minerals tri-calcium silicates (C3S) and di-calcium silicates (C2S). Upon hydration, the main reaction

  • (PDF) Analysis of total chloride content in concrete

    Analysis of total chloride content in concrete is the maximum total chloride content in concrete in per The combined expanded glass particles and cenospheres were used as fine aggregates

  • Deterioration Process of Concrete Exposed to Internal

    The results showed that significant expansion and great loss in compressive strength did not occur in concrete if the content of SO3 lay below 1.5% and 3% in fine and coarse aggregates, respectively. The concentration of sulfate ions in concrete