technical information

Haydite Aggregate Properties

“L” Landscaping Material

Excellent ground cover and mulch, that will not fade or rot. Will not easily blow or wash away.

“C” Coarse Material

A coarse lightweight aggregate for use in concrete, landscaping, and Geotechnical fill applications. Available in a prewetted state for use in concrete and concrete pumping applications.
“B” Coarse Material

A coarse lightweight aggregate for use in concrete, landscaping, soil conditioning, and Geotechnical fill applications. Available in a prewetted state for use in concrete and concrete pumping applications.
“A” - “BX” Fines

Various gradations of fine aggregate for use in lightweight masonry, concrete, and soil conditioning.

 

Aggregate Properties ( Cleveland Plant)

CHEMICAL ANALYSIS

Haydite is produced from high-grade shale which is suitable for face brick manufacture. As a result of being burned at a temperature of approximately 2200 Deg. F., Haydite has no combustible content and is chemically inert. A typical chemical analysis of the finished product is shown in the following table:

Silica (SiO2)
66.8%
Ferric Oxide (Fe2O3)
3.9
Alumina (Al2O3)
18.9
Calcium Oxide (CaO)
0.9
Magnesium Oxide (MgO)
1.7
Sulfur Trioxide (SO3)
0.6
Alkalies (Na2O)
4.6
ABSORPTION
The approximate 24-hour absorption of Cleveland Haydite is 10% by weight. Because of the non-connecting cellular structure of the aggregate and the small size of the cells, the absorption will vary substantially with the length of time it is exposed to water. The absorption procedures used with heavy aggregate are not readily adaptable to lightweight aggregate because of the difficulty of determining the saturated surface dry condition. As a result of these facts, the knowledge of the moisture content for mix control purposes is not particularly meaningful.
A.S.T.M. SPECIFICATIONS
Haydite is produced to comply with the physical and chemical requirements of applicable A.S.T.M. standards except that the medium coarse size (B) is often supplied with additional eight mesh materials to achieve desired block textures.C-330 - Lightweight Aggregate for Structural Concrete
C-331 - Lightweight Aggregate for Concrete Masonry Units
C-332 - Lightweight Aggregate for Insulating Concrete (Group II)
AVAILABLE SIZES
The Cleveland Plant produces the following sizes of Haydite aggregate:

"A" size Haydite is a fine gradation which is used for cast-in-place concrete, lightweight masonry, precast concrete, deslicking grit and for "Gunite" or "Shotcrete" applications.

"BX" size Haydite is a blend of fine and medium coarse Haydite used where bin availability limits the use of separate sizes. It is ordinarily intended for block production. Its use for cast-in-place concrete should be limited to low density, low strength roof fill.

"B" size Haydite is a medium coarse gradation used for cast-in-place concrete, precast concrete, and concrete block production.

"C" size Haydite is a coarse gradation used for cast-in-place concrete, precast concrete, and Geotechnical fill.

"H" size Haydite is a clean small coarse graduation used for horticultural uses.

"L" size Haydite is a coarse gradation used for ground cover.

All sizes are used in various horticulture applications: "C" for hydroponics; "H" for soil amendments; "B" and "C" and "L" for pine bark replacement.

GRADATION & UNIT WEIGHT
Size Size Designation Approx. Unit Weight

Per Cubic Yard

A No. 4 x 0

54 lbs./cf.

1,450 lbs.

BX 3/8" x  0 56 lbs./cf. 1,500 lbs.
B 3/8" x No. 8 49 lbs./cf. 1,325 lbs.
C 3/4" x No. 4 48 lbs./cf. 1,300 lbs.
H 3/16"x 1/16" 50 lbs./cf. 1,350 lbs.
L 1 1/2" x 3/4 " 46 lbs./cf. 1300 lbs.

Indicated unit weights of aggregates are only approximate and should not be used as the basis for establishing batch weights. Batch weights should be based on actual unit weights as determined by the Standard Method of Test for Unit Weight of Aggregate (ASTM) Designation; C 29) Utilizing the shoveling procedure described in section 11.

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