Test Report
Index OF Test Results:
- Compressive test of Rockite
- Comparison compressive tests with Kwixset (water proof version of Rockite) Portland Cement and Rockite
- Tension test from the center of concrete slab using Reidbar Grade 500
- 4 Tension tests at nominally 45mm from face edge with mild steel anchors and Reidbar grade 500.
- Strain Bearing Ability
The following test results were established in laboratory conditions at Opus International Consultants Limited, Auckland New Zealand. Where indicated test results were established in laboratory conditions in the USA.
Test Results 1: Tests were conducted in the USA
Compressive test of Rockite
Set 1: Compression Strength at the end of one hour
Cube No | Area in Sq inches | Area in Sq centimeters | Lbs. Load at failure | Mpa Load at failure |
1 | 4.00 | 101.6 | 17,270 | 118.99 |
2 | 16,920 | 116.57 | ||
3 | 18,440 | 127.05 |
Set 2: Compression Strength at the end of seven days
Cube No | Area in Sq inches | Area in Sq centimeters | Lbs. Load at failure | Mpa Load at failure |
4 | 4.00 | 101.6 | 33,650 | 231.84 |
5 | 32,220 | 221.99 | ||
6 | 31,550 | 217.37 |
Test Result 2: Tests were conducted in the USA
Comparison compressive tests with Kwixset (water proof version of Rockite) Portland Cement and Rockite
Set 1:
Rockite Cement | Kwixset Cement | Iron Bearing Portland Cement | ||||
Setting Time | 20-30 minutes | 15-20 minutes | 4-8 hours | |||
Compression Strengths In 60 minutes In 24 Hours In 7 days |
4600 psi 5000 psi 8000 psi |
31.69mpa 34.45mpa 55.12mpa |
4100 psi 8100 psi 9300 psi |
28.24 mpa 55.80 mpa 64.07 mpa |
0 psi 2450 psi 5500 psi |
0 mpa 16.88 mpa 37.89 mpa |
Linear movement | Positive expansion 0.18% controlled | Positive expansion 0.125% controlled | Expands or shrinks | |||
Movement With Time | Completely stable for all practical purposes | Completely stable for all practical purposes | Continued expansion sufficient to cause self-destruction | |||
Contains Rust Promoting | No | No | Yes | |||
Consistency | Sufficiently fluid to be self-leveling | Sufficiently fluid to be self-leveling | Must be vibrated to achieve leveling | |||
Weight of dry mix to produce 1 cubic foot (yield) | 92 pounds or 41.73 kilograms |
110 pounds or 49.89 kilograms |
140 pounds or 63.50 kilograms |
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Test Results 3: Opus Consultancy Reference No P/7B/97
Tension tests from the center of concrete slab (35Mpa) using Reidbar Grade 500
Set 1:
12mm Diameter Reidbar Grade 500 (Rb12)
Imbedded Item (mm) | Hole Diameter (mm) | Hole Depth (mm) | Applied Load (kN) at Failure |
Average Load (psi) at Failure |
Failure Mode |
Rb12 | 12 | 100 | 16.7 | 2,423 | Bond Failure |
16 | 20.8 | 3,018 | Bond Failure | ||
19 | 71.8 | 10,420 | Bar Failure |
* The above table indicates that as the diameter of the hole was increased. The average loading on Rockite increases due to the expansion qualities of Rockite.
Set 2:
12mm Diameter Reidbar Grade 500 (Rb12)
Imbedded Item (mm) | Hole Diameter (mm) | Hole Depth (mm) | Applied Load (kN) at Failure |
Average Load (psi) at Failure |
Mode of failure |
Rb12 Reidbar | 19 | 100 | 71.7 | 10,406 | Bar Failure |
72.2 | 10,478 | ||||
71.6 | 10,391 |
Set 3:
12mm Diameter Reidbar Grade 500 (Rb12)
Imbedded Item (mm) | Hole diameter (mm) | Hole Depth (mm) | Applied Load (kN) at Failure |
Average Load (psi) at Failure |
Mode of failure |
Rb 12 Reidbar | 19 | 50 | 16.5 | 2,394 | Pulled bar out of grout |
17.1 | 2,481 | ||||
15.8 | 2,239 |
Set 4:
16mm Diameter Reidbar Grade 500 (Rb16)
Imbedded Item (mm) | Hole Diameter (mm) | Hole Depth (mm) | Applied Load (kN) at Failure |
Average Load (psi) at Failure |
Mode of Failure |
Rb16Reidbar | 20 | 100 | 30.2 | 4,383 | Failure in the Rockite and damage to the concrete |
26.8 | 3,889 | ||||
29.7 | 4,310 | ||||
28 | 100 | 14,513 | No failure in the Rockite at the applied load * |
* As Rockite held firm we were unable to determine the failure point. The maximum load bearing of 100kN is the maximum for the testing equipment. This test equates to, for this size bar approximately 500Mpa
Set 5:
20mm Diameter Reidbar Grade 500 (Rb20)
Imbedded Item (mm) | Hole Doameter (mm) | Hole Depth (mm) | Applied Load (kN) at Failure |
Average Load (psi) at Failure |
Mode of Failure |
Rb20 Reidbar | 100 | 28 | 57.3 | 8,316 | Concrete Failure |
56.9 | 8,258 | ||||
48.2 * |
* This test resulted in the concrete cracking of the slab.
Set 6:
Mild Steel Bolts (M12)
Imbedded Item (mm) | Hole Diameter (mm) | Hole Depth (mm) | Applied Load (kN) at Failure |
Average Load (psi) at Failure |
Mode of failure |
M12Mild Steel Bolt | 30 | 50 | 36.6 | 5,312 | Pulled bolt out of grout |
40.0 | 5,805 | ||||
37.2 | 5,399 | ||||
100 | 50.9 | 7,387 | Bolt Failure | ||
51.8 | 7,518 | ||||
51.6 | 7,489 |
Test Results 4: Opus Consultancy Reference No 03/420/001
Tension tests at nominally 45mm from face edge with mild steel anchors and Reidbar Grade 500
Set 1:
10 mm Diameter Reid Anchors (mild Steel)
Anchor Diameter (mm) | Hole Diameter (mm) | Hole Depth (mm) | Applied Load (kN) at Failure |
Average Load (psi) at Failure |
Failure Mode |
10 | 14 | 100 | 33.2 | 4,818 | Bond failure with very shallow concrete cone |
16 | 34.8 | 5,050 | Bar Failure | ||
18 | 34.9 | 5,065 |
Set 2:
12mm Diameter Reid Anchors (mild steel)
Anchor Diameter (mm) | Hole Diameter (mm) | Hole Depth (mm) | Applied Load (kN) at Failure |
Average Load (psi) at Failure |
Failure Mode |
12 | 16 | 100 | 44.8 | 6,502 | Concrete Failure |
18 | 41.9 | 6,081 | |||
20 | 48.7 | 7,068 | Bar Failure | ||
16 | 120 | 48.2 | 6,995 | Bar Failure | |
18 | 47.6 | 6,908 | Concrete Failure | ||
20 | 48.0 | 6,966 |
Set 3:
16mm diameter Reid Anchors (mild steel)
Anchor Diameter (mm) | Hole Diameter (mm) | Hole Depth(mm) | Applied Load (kN) at Failure |
Average Load (psi) at Failure |
Failure Mode |
16 | 20 | 110 | 84.6 | 12,191 | Concrete Failure |
20 | 120 | 88.6 | 12,859 | Bar Failure | |
24 | 100 | 68.9 | 10,000 | Concrete Failure | |
24 | 110 | 88.1 | 12,786 | Bar Failure | |
24 | 120 | 77.4 | 11,233 | Concrete Failure |
Set 4:
12mm Diameter Reidbar Grade 500 (Rb12)
Anchor Diameter (mm) | Hole Diameter (mm) | Hole Depth (mm) | Applied Load (kN) at Failure |
Average Load (psi) at Failure |
Failure Mode |
RB12 | 16 | 100 | 68.6 | 9,956 | Bond failure with very shallow concrete cone |
18 | 80.6 | 11,698 | Bar Failure | ||
20 | 79.8 | 11,582 | |||
16 | 120 | 80.4 | 11,669 | ||
18 | 80.2 | 11,640 | |||
20 | 80.4 | 11,669 |
Test Results 5: Strain Bearing Ability. USA Test Results
The compound shall produce a setting with an average strain bearing ability for each respective bolt and opening size, as shown in the following chart.
Diameter of Mild Steel Bolt* | Hole Diameter ** | Hole Depth | Average strain Bearing Ability *** | ||||
mm | inches | mm | inches | mm | inches | Kilogram | Pounds |
9.52 | 3/8 | 31.4 | 1 ¼ | 76.2 | 3 | 3,900 | 8,600 |
12.7 | 1/2 | 44.4 | 1 ¾ | 101.6 | 4 | 7,030 | 15,500 |
19.05 | 3/4 | 63.5 | 2 ½ | 152.4 | 6 | 17,100 | 37,700 |
25.4 | 1 | 88.9 | 3 ½ | 203.2 | 8 | 26,762 | 59,000 |
31.75 | 1 ¼ | 107.9 | 4 ¼ | 304.8 | 12 | 42,729 | 94,200 |
* All bolts shall be equipped with a washer large enough to fit the diameter of the opening with only enough tolerance so that the washer will be free to reach and rest snugly against the head of the bolt at the bottom of the opening.
** Depths shown are based opening drilled in sound concrete having a compressive strength of 24.8 Mpa/3600psi. In the case of weaker concrete, the depth shall be increased to provide a greater purchase to the concrete slab. This minimizes the danger of failure due to fracture of the concrete when subjected to extreme strains.
*** Data determined by tests in which the strains recorded were limited to stresses sufficient to rupture mild steel bolts of each representative diameter. In no case was the setting injured.