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results of tests on a 1 cu yd sgme drum type concrete mixer

METHOD OF TEST FOR EVALUATION OF AGGREGATE FOR LEAN CONCRETE …

6. Concrete Mixer: A power-driven revolving drum tilting mixer, revolving pan, or revolving paddle mixer capable of thoroughly mixing batches of the prescribed sizes at the required slump. E. PROCEDURE 1. Design the lean concrete base at 255, 285 and 315 lb

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The following Section shall be made a part of the Standard …

Mix concrete materials in appropriate drum-type batch machine mixer. a) For mixer capacity of 1 cu. yd.0.76 cu. m or less, continue mixing at least one and one-half minutes, but not more than five minutes after all ingredients are in mixer, before any part of batch is released.

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LABORATORY AND FIELD TESTS ON CONCRETE SEALING …

Concrete Mixing Ratios - How To Make Concrete (Cement

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METHOD OF TEST FOR EVALUATION OF AGGREGATE FOR LEAN …

revolving paddle mixer capable of thoroughly mixing batches of the prescribed sizes at the required slump. E. PROCEDURE 1. Design the lean concrete base at 255, 285 and 315 lb of cement per cubicyard. The size of the batch shall be at least 0.4 cu. ft. or a

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5 Concrete Placement - IN.gov

results of all tests are shared between INDOT and the Fabricator. Tests for entrained air are required to be made on concrete containing the same materials and using the same type mixer and mixing procedure used for the structural member. The air

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Minnesota Department of Transportation - MnDOT - (2461) STRUCTURAL CONCRETE

Provide batches for a delivered load of concrete in sizes of at least 1 cu. yd. The Engineer may reject readymix concrete delivered to the work site that does not meet the specified requirements for delivery time, consistency, quality, air content, or other

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ERDC Knowledge Core: Feasibility study of no-slump …

Concrete Mixing Ratios - How To Make Concrete (Cement

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Illinois

Notes: (1) The minimum portland cement content in the mixture shall be 400 lbs/cu yd (237 kg/cu m). A cement factor reduction for using a water-reducing admixture or a high range water-reducing admixture will not be allowed, and Articles 1020.05(c)(5)b. and 1020.05(c)(5)c. will not apply.

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Section 03300 Cast-in-Place Concrete Addendum

7. Concrete type, class (strength), and design mix designation. 8. Actual quantities of all materials including admixtures and amount of concrete in cubic yards. 9. Time at which mixer drum was charged with cement. 10. Amount of free moisture by percentage

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EVALUATION OF DENSE BRIDGE FLOOR CONCRETE HIGH …

Concrete Mixing Ratios - How To Make Concrete (Cement

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Roller Compacted Concrete.doc - ROLLER COMPACTED …

ROLLER COMPACTED CONCRETE (BMPR) Effective: January 17, 2014 Description. This work shall consist of constructing roller compacted concrete (RCC) on a prepared subgrade. Materials. Materials shall be according to Article 1020.02, except the following

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SUCCESSFUL IMPLEMENTATION OF SCC IN A PRECAST …

SUCCESSFUL IMPLEMENTATION OF SCC IN A PRECAST OPERATION- A CASE STUDY Fernandez, P.*1, Luciano, J.2 and Constantiner, D.3 ABSTRACT Successful implementation of self-consolidating concrete …

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ITEM III - CONCRETE CONSTRUCTION

(b) Concrete shall be mixed in a standard type of batch mixer with a drum speed of 200 to 225 peripheral feet per minute. Mixing time shall be one minute for batches of 1 cu. yd. or less, and shall be increased 15 sec. for each additional 1/2 cu. yd. or

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The Project Gutenberg eBook of Concrete Construction, …

16/3/2008 · When laying dry concrete the same gang averaged only 8 cu. yds. a day, there being 4 men ramming. With foreman at $2 and laborers at $1.50 a day, the cost was $2.12 per cu. yd. for labor on the dry concrete as against $1.13 per cu. yd. for the wet concrete.

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SECTION 03300 CAST-IN-PLACE CONCRETE

7/11/2015 · A. Job-Site Mixing: Mix concrete materials in appropriate drum-type batch machine mixer. For mixers of 1 cu. yd. or smaller capacity, continue mixing at least 1-1/2 minutes, but not more than 5 minutes after ingredients are in mixer, before any part of batch is

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EXPERIMENTS WITH DRY ICE FOR COOLING FRESH CONCRETE

An additional 0.9 pound of dry ice was included to cool the mixer drum. CONCLUSIONS 1. The addition of 2.3 pounds of dry ice to a 1-1/2-cubic foot mix (about 41 pounds per cubic yard) reduced the concrete temperature only 5 F instead of 9.3 F

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Concrete Mixing Ratios - How To Make Concrete …

Concrete Mixing Ratios - How To Make Concrete (Cement

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Eastside Square Sunrise Plaza Improvements SECTION 033000 - CAST-IN-PLACE CONCRETE PART 1 …

Mix concrete materials in appropriate drum-type batch machine mixer. 1. For mixer capacity of 1 cu. yd.(0.76 cu. m) or smaller, continue mixing at least 1-1/2 minutes, but not more than 5 minutes after ingredients are in mixer, before any part of batch is2. For

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CHAPTER V. CONCRETE CONSTRUCTION | HANDBOOK …

Mix 1:1½:3. Tables and Curves.—The tables show the quantities in. 1 cu. yd. of concrete based on 3.8 cu. ft. cement per barrel for proportions of 1:2:4 and 1:1^:3, the two mixes used by the New York State Highway Department in concrete pavement

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EVALUATION OF DENSE BRIDGE FLOOR CONCRETE HIGH …

1.0 oz/sk AEA. The resulting fresh concrete had 14.1% air at both the batch plant and the bridge site. This was far out of specifications and was rejected. The reason for the high air content could not be determined. A third 3% cu yd load was batched at

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