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Index OF Test Results:
  1. Compressive test of Rockite
  2. Comparison compressive tests with Kwixset (water proof version of Rockite) Portland Cement and Rockite
  3. Tension test from the center of concrete slab using Reidbar Grade 500
  4. 4 Tension tests at nominally 45mm from face edge with mild steel anchors and Reidbar grade 500.
  5. 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.

Chinese Translation

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

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 76.2 3 3,900 8,600
12.7 1/2 44.4 1 101.6 4 7,030 15,500
19.05 3/4 63.5 2 152.4 6 17,100 37,700
25.4 1 88.9 3 203.2 8 26,762 59,000
31.75 1 107.9 4 304.8 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.

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