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Sieve Analysis of Fine and Coarse Aggregates
ASTM C136 --- AASHTO T27
_Slate Dust____3/8 minus___SAMPLE I. D. BELOW
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Sieve Size Weight Retained Percent Passing
3/8 in. 0.0 100.0
NO. 4 39.8 92.2
NO. 8 214.9 58.1
NO. 10 246.8 51.9
NO. 16 321.9 37.2
NO. 30 388.2 24.2
NO. 50 432.9 15.5
NO. 80 445.1 13.1
NO. 100 465.2 8.5
NO. 200 487.7 4.8
PATH FOUNDATION APPROVED
ADA COMPLIANT
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| GREEN SPACE TRAIL |
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| Mineral Analysis of Slate vs. Granite
ELEMENTS SLATE GRANITE
PH 8.00 7.80
Silica 56.74 77.64
Calcium 5.68 0.01
Magnesium 2.89 0.04
Aluminum Oxide 17.65 19.33
Iron 6.50 1.22
Sodium 1.66 0.05
Potassium 3.42 0.80
Phosphorus 0.08 0.05
Sulfur 0.04 0.01
Sundry Minor 1.43 0.04
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* Denotes the Primary chemical elements required by plants for normal growth.
* Slate contains 18.61% of the elements; Granite contains 2.13% of the elements.
* Granite is mainly Silica Dioxide at 77.64% with only very minor traces of chemical elements required for plant root and stem growth.
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* Calcium is necessary for the formation of strong cell walls of plants. A lack of calcium may stunt plant growth.
* Magnesium forms the core of every molecule of chlorophyll and it is thus impossible for green plants to grow without it.
* Iron is necessary to form chlorophyll, which together with light, water, and air makes it possible for plants, through the
process of photosynthesis, to make food.
* Potassium strengthens plant stems, and improves the size, color, and flavor of fruits and vegetables.
* Phosphorous stimulates root growth, speeds the maturing of plants, and is particularly important in the formation of
fruits and seeds.
* Sulfur forms a part of several plant proteins and promotes the growth of roots and seeds.
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| Chick-Fil-A Corporate Headquarters, Exercise Trail |
| SlateScape(tm) Pathway with Border |
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