SILICA

BANGKA BELITUNG

Silica Sand Bangka Belitung is widely known as one of Indonesia’s finest (superb quality) building sands, especially for high-level structural and finishing work. This sand originates from Bangka Island and is renowned for its cleanliness, hard grains, and extremely low silt/mud content.

Bangka sand has become a primary choice in many major cities, particularly in Java and Sumatra, because it can produce concrete mixtures and plastering with optimal strength and a very smooth final finish.

 

Key Characteristics for Sales:

 

  • Superb Quality: It is considered the benchmark for the best quality construction sand.

  • Cleanliness: It has a very low silt/mud content; it is often sold pre-washed (washed sand), which ensures perfect cement bonding.

  • Color: Available in several characteristic color variants, ranging from bright white, cream, to light brown.

  • Texture: The grains are hard, sharp, and generally have variants that are very fine for finishing and coarse for concrete (casting).

Parameter Unit Results Method
Iron Trioxide (Fe203) % 0.062 PO/MIN-BT/01 (XRF) *
Calcium Oxide (Ca0) % 0.004 PO/MIN-BT/01 (XRF) *
Magnesium Oxide (Mg0) % 0.01 PO/MIN-BT/01 (XRF) *
Silicon Dioxide (Si02) % 98.99 PO/MIN-BT/01 (XRF) *
Moisture Content (MC) %, AR 0.19 PO/MIN-MP/15 (Gravimetric) **
Particle size distribution attached GRAVIMETRI
+ 3.35 mm % 96.60 GRAVIMETRI
+ 1.00 mm % 3.22 GRAVIMETRI
- 1.00 mm % 0.18 GRAVIMETRI
Bulk density, loose kg/L 1.44 ASTM C29-17
Bulk density, densed kg/L 1.58 ASTM C29-17
Voids, uncompacted % 42.63 ASTM C29-17
Voids, compacted % 36.79 ASTM C29-17
Size fraction (mm) Sample A (Total: 372.80 gr) Sample B (Total: 500.00 gr)
Weight retained (%) Cumulative pass (%) Weight retained (%) Cumulative pass (%)
plus - 9.50 0.00 0.00 0.00 100.00
9.5 - 4.75 0.00 0.00 0.00 100.00
4.75 - 2.36 0.00 0.00 0.00 100.00
2.36 - 1.18 2.40 0.48 0.48 99.52
1.18 - 0.60 488.90 97.78 98.26 1.74
0.6 - 0.30 7.20 1.44 99.70 0.30
0.3 - 0.15 0.30 0.06 99.76 0.24
0.15 - 0.075 0.00 0.00 99.76 0.24
pan 1.20 0.24 100.00 0.00
Total 500.00 100.00 298.20 --

PT TIM Indotama Mineral is a subsidiary of PT Timah Investasi Mineral, part of the PT TIMAH Tbk Group. 

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