Rock removal in urban area with CRAS

The project presented in this report combines two characteristics that make it especially suitable for CRAS, the non-explosive demolition cement manufactured by the Basque firm Kayati SL. This is a demolition work that had to be carried out in the centre of the city, an urban stage in a hilly area.

The goal of the demolition was to gain volume between buildings in the urban area of mountain town, which would allow a gain of buildable space, something scarce in the area due to its orography, thus providing great value for the final customer.

As the images show, the use of explosives to carry out this work was totally out of consideration. The construction site was located downtown, with a sidewalk and road a few meters away and with neighbouring houses. In addition to the inconvenience that roadblocks, noise and vibrations could cause to neighbours, the use of explosives would have generated dangerous projections of debris, and would have had unwanted effects on the structure of surrounding buildings.

The way how demolitions are executed with CRAS meets perfectly the requirements of this type of situation. First of all, it is not necessary to ask for any type of administrative permit related to the use of explosives. Nor is it necessary the use of heavy machinery. 

The process begins with the drilling of the rock to be demolished. In this case, a 63 mm drill bit was used to drill 3 meters deep, distributed according to the CRAS manufacturer's instructions. Mortar made with CRAS Yellow, one of the versions of this product, was poured into these holes.

After 48 hours of the CRAS pouring, there was a break in the rock, which was reduced to debris -easily removable- in the next hours. After removal, the result was the creation of some valuable buildable square meters in the area.

This project is one more example of how the CRAS eases demolition works and becomes an essential ally for building professionals when it comes to carrying out demolitions where explosives cannot be used.

Gaining space to the mountain

The economy of mountain areas is a story of love and hate with the orography. The same mountains that generate wealth are scant when it comes to giving up space for human implantation. Building in the highlands has its particularities, one of which is that, sometimes, you have to create the space to build. The clearings and embankments are common in the construction of buildings as well as infrastructure. And CRAS, the non-explosive demolition cement manufactured by the Spanish firm Kayati SL, is an ally in the fight for space in mountainous terrain.

The images included in this note shows a clearing carried out in a hilly area. The goal of this demolition project was to steal square meters from the mountain, to allow road improvement and the building of a house.

The use of CRAS in this project allows its viability. Being a demolition work carried out in an inhabited area, the use of explosives was totally forbidden for security reasons. CRAS performs the demolition by expansion, without blasts, noise or annoying vibrations. In some cases it is the only possible way for demolition.

The demolition was performed not only safely, but also quickly and economically, two other virtues of the cement created by Kayati SL. In the images can be seen the marks of the perforations carried out to allow the pouring of the mortar kneaded with CRAS and water.

In addition to giving a solution to the major problem of clearing, CRAS was useful to perform some minor demolitions, such as the rock seen in the image on the right, that was an obstacle to the works in the place where they were carried out the emptying.  The CRAS ease of use, without the need of special permits for demolishing works, guaranteed the success of this demolition project.

The final result was a new small victory in the eternal war between the humans and the mountains. A fair battle in this case, given the environmentally friendly features of CRAS.

Demollition of isolated rocks with no explosives

Kayati's CRAS is the most suitable method to crack isolated blocks without noise and blasts.

In some hours, rocks break in smaller parts, matching the pattern drawed by drillings.

Please visit us as www.kayati.com for further information on this and other applications of CRAS.

Making room for a lift

These pictures show how CRAS, demolition cement manufactured in Spain by Kayati SL, is used as a demolition mortar to remove 8 sqm of granite.

 This demolition project is a phase of a larger project, the renewal of a lift.

 Demolition has been done in two layers, to get the 2 meters deep.

 At the end of the demolition work, there was space for concrete and for the rest of the lift installation.

More information on CRAS at www.kayati.com

The best of CRAS at removals

 Removals are esentials in some building works, and CRAS helps in these projects with its non-explosive demolition power.

 Some of the largest public works developed in Spain in the past years have been using CRAS for removal purposes.

 Contractors all around the Worl enjoy CRAS, an easy-to-use say to demolish even the hardest rocks.

Well done, with CRAS!

Silent demolition with CRAS

 CRAS is very useful for silent demolitions.

 In environments where noise is not allowed, non-explosive demolition is the solution.

 CRAS performs a quick, clean and silent demolition.

 More information on CRAS at www.kayati.com.

CRAS and surgical demolition

 CRAS is really useful for demolitions close to houses or other sites where explosives are unsuitable.

In this project, CRAS helped to dig a trench close some centimeters of the wall of a house. The ground to be broken was solid rock, and CRAS performed a clean and quick demolition of such a hard terrain. CRAS is the ideal solution for surgical demolition.