Surface dressing (Coladres) are thin-layer asphalt coatings made by spraying the base with a bituminous binder, sprinkling bitumen-wrapped or unwrapped coarse aggregate and rolling, in accordance with the HRN EN 12271 standard.

We distinguish between single surface treatments, single surface treatments with double spreading, double surface treatments, reverse double surface treatments and surface treatments with a previous spread - "sandwich".

Given the lower costs than with classic asphalting, Coladres is particularly suitable for the rehabilitation of macadam roads, i.e. gravel surfaces. By applying a single or double surface treatment, a waterproof layer is created, which protects the substrate (tampon) from further rinsing and damage, and prevents the appearance of dust. Coladres can also be used to repair a worn wear layer of asphalt pavement, which increases its grip and extends the life of the asphalt surface.

Asphalt does not necessarily have to be only black. Colas Hrvatska also produces colored asphalt mixtures - Colclair. During production, instead of the standard road construction black bitumen, a transparent Bituclair binder is used, to which color pigments are added according to the investor's preferences.

Also, with transparent Bituclair we can produce asphalt without pigment, whereby the color of the produced asphalt depends primarily on the type of stone we work with. White limestone gives sand-colored asphalt, sepia, brown-yellow shades, while the use of darker stone aggregate results in grayish to gray-olive and blue colors.

Compared to the subsequent painting of the pavement surface and solutions based on concrete, Colclair is characterized by a significantly more stable color, resistance to salt and frost, anti-slip properties and a faster installation speed.

Colmix is a special mixture of gravel aggregates intended for the production of concrete mix, specially designed according to the requirements of our customers.
It consists of standard fractions of mineral aggregates used in the production of concrete: 0-4 mm, 4-8 mm, 8-16 mm and 16-32 mm. These fractions are mixed in predefined proportions to achieve optimal concrete quality. In addition to the certified recipe used by most of our customers, the proportion of individual fractions in Colmix can be modified and adapted to specific needs.
Given the precise dosing of individual fractions, Colmix ensures continuous quality of mineral aggregates, which ultimately results in continuous concrete quality.
All fractions of mineral aggregates are certified in accordance with EN 12620 Concrete aggregates.
 

Novacol® (cold recycling in situ) is based on the use of pre-existing embedded materials in pavement construction.

Existing materials are used to the maximum, and new ones are added to the minimum according to previously done exploration work. The application of this technology makes a significant contribution to energy conservation and can be applied to all types of roads. The basic phases of work consist of milling the existing pavement, adding all the necessary components according to the given composition, homogenizing, profiling and compaction of the layer. The advantages are a positive impact on the environment, high efficiency of machines, shorter lead times and reduced impact on environmental pollution.