macrotexturE AND microtexturE

Over time, concrete and asphalt pavements lose their friction and macrotexture characteristics due to surface wear, poor drainage, and the accumulation of bitumen and other contaminants on the pavement surface.

 

The Stripe Hog System easily removes this build-up, restores surface friction values ​​and texture depth to desirable levels, thereby enhancing macro and microtexture.

 

There are two types: The positive Macrotexture, which is associated with surface treatments, and the negative Macrotexure, associated with porous or draining mixtures..

iNFORMATION

Macrotexture.

It is mainly associated with the granulometric composition of the tread layer and the treatments that have been carried out on it.

 

It is necessary for adequate slip resistance at medium and high speed on wet pavement because it improves the adhesion coefficient between the tire and the wet pavement because it improves the adhesion coefficient between the tire and the pavement, avoiding hydroplaning, since when counting With an open texture, it allows surface water to drain more easily.

 

This macrotexture is measured by the sand circle test collected in the NLT-335 standard. The result represents the average depth of the voids filled by the sand.

Microtexture.

It guarantees us adherence. It is associated with the surface roughness of the aggregate used in the tread layer and its ability to keep it unaltered under the action of traffic over time, avoiding polishing of the surface.

 

Provides direct contact between tire and pavement.

1. The hydro-grinding process of pavement increases Road Safety by improving the levels of friction and macro-texture and thus creates safer roads.

 

2. The degree of importance of the microtexture and macrotexture depends on the speed of the vehicle.

 

3. It has been found that at speeds less than 60 km / h the slip resistance depends solely on the micro-texture, while at higher speeds with wet pavement it depends on both

RECOVERY OF DRAINING FIRMS

The evacuation capacity of a pavement is divided between: infiltration drainage (drainage through the pavement) and runoff drainage (water that runs longitudinally and transversely towards the shoulder). Infiltration drainage depends on the macrotexture of the pavement, the longitudinal and transverse slopes and the depressions of the surface that form valleys that diminish or impede normal drainage.

 

To solve this problem, draining pavements arose. The drainage capacity of the road is given by a greater number of voids in the asphalt mix. They provide comfort and safety for the driver, since they do not project water towards other vehicles, as well as an improvement in visibility, avoiding night-time glare due to light reflection.

 

With the passage of time, the gaps fill up, so the draining effect of the pavement is lost. For this reason, it is necessary to carry out periodic maintenance of said flooring to clean the clogged gaps and avoid the dreaded “aquaplaning effect”.

Xequevia LTD through the Stripe Hog system projects high pressure water on the pavement, cleaning the gaps and thus recovering its drainage capacity.