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Product Information - Tan Bunker Sand (Ravensdale Sand)
Reserve's Tan Bunker Sand is a high purity naturally sub-angular silica sand that has been specially processed for golf course sand bunker applications. The sand is mined from an ancient fresh water deposit and scrubbed, sized and washed. No chemicals are used in the processing of this sand. The sand a green friendly pH of 6.5 (the typical chemical analysis is shown below).

Drains well - Infiltration rate exceeds the minimum recommended rate of 15in/hr
Desirable ball lie - Penetrometer value exceeds 2.4 kg/cm2
Tan Bunker Sand Particle Size Distribution
After attrition testing (ASTM F-1632)
U. S. Standard Sieve Size Sieve Diameter (mm) Type Greater than > or Less than < % Retained Recommended % Retained on Sieve*
10 2.00 Gravel < 1% < 2%
18 1.00 V. Coarse < 10% < 15%
35 0.50 Coarse > 65% 78% to 100%
60 0.25 Medium
140 0.10 Fine < 15%
270 0.05 V. Fine < 1.75% < 5%
Pan Pan Silt/Clay < 3.0% < 3%
* Recommended values referenced in Hummel & Co. test; from Brown and Thomas Golf Course Management 54:64-70, 1986

Typical Chemical Analysis
%
Silicon dioxide SiO 91.2%
Aluminum Oxide Al2O3 3.9%
Iron Oxide Fe2O3 1.6%
Potassium Oxide K2O 1.1%
Sodium Oxide Na2O 0.1%
Calcium Oxide CaO 0.1%
Loss on Ignition   2.1%
pH 6.5  
The maximum/minimum particle size distribution and chemical analysis do not represent a specification. The information contained herein is correct to the best of Reserve Silica's knowledge. Reserve Silica disclaims any warranties as to the accuracy of the information presented. The buyer shall make their own determination as to the suitability of the product for the buyer's purpose. Revised 4/10/2002
P. O. Box 99, Ravensdale, WA 98051
(425) 432-1241     Fax (425) 432-5265     e-mail rsilica@seanet.com

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