Technical Data Sheet Edition 2, 2011 Identification no. xxx Version no. 0010 ® Sika Rokkon RB
Sika® Rokkon RB
Non Explosive Demolition Agent Description
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Sika Rokkon RB is a low pollution, non-explosive demolition agent. It uses special expansive cement that generates expansive st ress by reaction with water. ®
n o i t c u Technical Data r t s n o C Uses
Characteristics / Advantages
Typical Yield Application Temperature (Material, Substrate and Ambient Temperature) Hole Diameter Hole Depth
Sika Rokkon RB generates cracks systematically in rock and concrete and thus making secondary breaking, if any, easier. ® work but particularly where ■ Sika Rokkon RB is ideally suited for all demolition work the use of explosives will cause damage, pollution, and danger to the surrounding environment. ■ Quarrying works, splitting of bouders, splitting of rock before pneumatic breaker / excavator work. ■ Demolition of mass concrete / wall / pier ■ ■ ■ ■ ■ ■
Soundless Environmentally friendly, no dust, flyrock, gas or debris Easy to mix with low speed hand mixer / drill and paddle Less hazardous than use of explosives High expansive stress Simple in handling and storage
Approx. 3.1 litres (after mixing with water, water to powder ratio = 30%) 15°C -35°C Do not use Sika Rokkon RB beyond the above a pplication temperature Minimum 35-mm Maximum 50-mm The larger the hole diameter is, the greater the expansive stress becomes The hole length varies with the shape of the object to be demolished When the length is less than 3 times that of the hole diameter, l ess cracking will occur, the breaking effect is lessened a nd the time required for the demolition is increased Kind of object Rock/boulder Concrete
Hole Spacing
Hole Spacing Hole spacing varies with the properties of rock, joint and condition of the surface, rebars quantity, secondary breaking required etc Rock Hard virgin rock Soft virgin rock Concrete Unreinforced concrete Reinforced Concrete
Mixing
Hole depth 80% of height 90% of height
Hole Spacing 40-60 cm 50-70 cm Hole Spacing 40-70 cm 20-35 cm (depending on quantity of rebars per m3 of concrete)
Mix 5-kg bag of Sika Rokkon RB uniformly with 1.5 litre of water. Mix to uniform consistency for approximately 90 seconds – 120 seconds. Use a mechanically powered low speed drill with mixing paddle Use cool coo l water below b elow 15 °C if the ambient am bient temperat t emperatu u re is higher hi gher than th an 30 °C.
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Application
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Pour Sika Rokkon RB mixture within 10 minutes after mixing into t he holes Spraying the surface with water after cracks initiate tends to expand the width of cracks and fasten the cracking process
Notes ® ■ Once the Sika Rokkon RB’s fluidity is gone it s hould not be re-mixed with water as the strength is greatly reduced. ® ■ Sika Rokkon RB must be poured into the hole to its brim. ® ■ Sika Rokkon RB may splatter or blow out of the hole due to the heat generation. Therefore limits the diameter of the hol e to maximum 50-mm and ensure the temperature of the hole, water, ambient and the product itself is within specification (maximum 35 °C for substate an d produ ct, mixing water is cool) ■ Do not leave the unused Sika Rokkon RB in the container, add excessive quantity of water and then pour onto the ground. ■ Do not pour and leave Sika Rokkon RB in glass container, cans etc Curing
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n o i t c u r t s nLegal Notes o C
Cover the filled holes with a plastic cover or het hessian to avoid any incidents caused by blown-out shots
The time required for the crack formation is normally between 10 – 24 hours depending on the temperature, hole diameter and spacing..
Packaging
5-kg bags.
Storage
Dry, cool, shaded place ® Do not place Sika Rokkon RB bags directly on the floor.
Shelf Life
Sika Rokkon RB has a minimum shelf life of 9 months.
Handling Precautions
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Sika Rokkon RB is high alkaline products, wear Protective Glasses and Rubber Gloves during mixing and filling of Sika Rokkon RB Do not use for other purposes besides the cracking of rocks or concrete. ® Rinse with water when any portion of the skin comes into contact with Sika Rokkon RB. ® Do not look directly into holes filled with Sika Rokkon RB for at least 24 hours after pouring. Whenever possible keep filled holes covered for protection. Ensure the area is suitably isolated prior to commencement of works.
The information, and, in particular, the recommendations relating to the application and end-use of Sika products, are given in good faith based on Sika’s current knowledge and experience of the product when properly stored, handled and applied under normal conditions in accordances with Sika’s recommendations. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The user of the product must test the product’s suitability for the intended application and purpose. Sika reserves the right to change the properties of its products. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request.
PT. Sika Indonesia Jl. Raya Cibinong- Bekasi km. 20 Limusnunggal- Cileungsi BOGOR 16820 - Indonesia Tel. +62 21 8230025 Fax +62 21 8230026 Website : www.sika.co. id e-mail:
[email protected]
Branches Surabaya : Komp. Pergudangan Meiko Abadi III Blok B-52 & B-53, Ds. Gemurung, Gedangan, Sidoarjo 61254 Tel : 031-8911333; Fax : 031-8916333 Medan : Jl. Pancing / Jl. Willem Iskandar No.66 B, Kec. Medan Tembung Tel : 061- 6619500; Fax : (061) 6619400 Batam : Jl. Laksamana Bintan, Komp. Bumi Riau Makmur Blok E No.3, Sungai Panas Tel : (0778) 424928; Fax : (0778) 450189
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