沙坑沙的标准可以参考果岭沙，或者比果岭沙稍微粗一点，因为随着日后的磨损，粉粒会越来越多，中粗颗粒（0.5-0.75mm）能占到70%以上最好。
以下是沙坑沙标准的国外资料
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 has a high silica content and a green friendly pH of 6.5 (the typical chemical analysis is shown below).
| U. S. Standard Sieve Size |
Sieve Diameter (mm) |
Type |
Maximum > or Minimum < % Retained |
Recommended % Retained on Sieve* |
| 10 |
2 |
Gravel |
< 1% |
< 2% |
| 18 |
1 |
V. Coarse |
< 10% |
< 15% |
| 35 |
0.5 |
Coarse |
> 65% |
78% to 100% |
| 60 |
0.25 |
Medium |
| 140 |
0.1 |
Fine |
< 15% |
| 270 |
0.05 |
V. Fine |
< 1.75% |
< 5% |
| Pan |
Pan |
Silt/Clay |
< 3.0% |
< 3% |
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) * Recommended values referenced in Hummel & Co. test; from Brown and Thomas Golf Course Management 54:64-70, 1986
| |
|
% |
| Silicon dioxide |
SiO |
91.20% |
| Aluminum Oxide |
Al2O3 |
3.90% |
| Iron Oxide |
Fe2O3 |
1.60% |
| Potassium Oxide |
K2O |
1.10% |
| Sodium Oxide |
Na2O |
0.10% |
| Calcium Oxide |
CaO |
0.10% |
| Loss on Ignition |
|
2.10% |
| pH |
6.5 |
|
Typical Chemical Analysis 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 | 
