Description
Demolition non – explosive mortar, suitable for cases where explosives can not be used
Fields of Application
Concrete, stones
Properties & advantages
It causes breakage in a safe manner, without explosion. It is suitable for construction projects where explosives cannot be used for safety reasons. As an effect of hydration Neocrack® generates a progressive expansive power more than 7500 Tn/m2
Technical characteristics
- Color: grey
- Mixing ratio (weight) : Neocrack/water: ~ 4/1
- Consumption: Concrete: 5-10 Kg/m3
- Concrete with reinforcement: 20-30 Kg/m3
- Rock: 4 -20 Kg/m3 (depends on the hardness and the structure)
Instructions for use
Mix Neocrack® with 26-30% cold water until it becomes a uniform mass without lumps. Water temperature must be up to 10oC especially in summer period (ambient temperature above 24oC) and 10-15oC in the winter period (ambient temperature below 18oC). Drill the holes with an electrical drill to the diameter and depth required. Fill the holes completely. The mortar should be applied within a maximum of 15 minutes.
For vertical holes leave a space on the top of 3cm. For horizontal holes loading, you should encapsulate Neocrack® using a plastic tube. Otherwise drill the holes at a slight angle in order to allow loading to be done by gravity. Plug the hole with fast setting mortar Neorep® Rapid or Neostop®. In this procedure it is important to avoid mixing Neocrack® with other cement mortar. For underwater application the product may be encapsulated in plastic tube. Otherwise use a loading pump in order to fill the holes. During application avoid the high ambient temperatures.
The holes depth depend on the shape and the nature of the element to be broken and must be almost the whole of the element. The diameter of holes must be 30mm up to 50 mm.
A diameter of 40 mm it works effectively in most projects. A simply way to estimate the distance between holes performs bellow.
D (mm): holes diameter L (cm): spacing between holes Min L=D, Max L=D+10
Example: for hole diameter D= 40mm, distance L must be maximum (D+10)=(40+10)cm=50cm and minimum 40cm