<P>Concrete floor cracks learned Preventive maintenance is a front road surface damage to conservation; corrective conservation refers to repair local damage of the pavement or for certain diseases treated; emergency conservation measures are in an emergency situation, for example, road and burst serious pothole in need of immediate repair in order to open to traffic.</P>
<P>From the life cycle of the road operator, when the road can not be used until the repair cost effective than large scale, which has been demonstrated in Europe and other countries. According to foreign studies have shown that preventive maintenance than asphalt pavement conservation measures are not taken, it can save 6 to 10 times the cost of road maintenance.</P>
<P>Pavement sealing layer can be controlled oxidation of the road, loose and cracks. Preventive maintenance but must be at the right time, and not just on the basis of traffic flow to determine. In order to choose the right time to carry out preventive maintenance, regular road conditions can be investigated and non destructive testing. In order to decide what to take and when conservation methods should be implemented conservation. Regular preventive conservation methods are sealing cracks, Chipseal, fog seal layer, a rut filled, thin overlay, thin face and micro+surfacing, crack treatment in addition to the rest of the way conservation can use the new road job.</P>
<P>Corrective conservation adapted to local pavement structural damage has occurred, but not affect the overall situation. Belong corrective conservation of pavement in the process of such friction reducing, moderate to severe rutting or extensive cracks.</P>
The main difference between <p> and that preventive maintenance cost and time. Preventive maintenance is the road is still in good condition when implemented corrective conservation when local repair roads need to implement, and therefore require more overhead costs. Obviously, this is a passive way of curing a variety of topical diseases accumulated formed global structural damage, leading to expensive repair work. Corrective conservation including structural layer paving, milling, hot pavement, pothole patching, patching, crack repair.Emergency repair emergency repair because of the impact damaged the road to normal traffic and had to do a restoration. This is already a way of interim relief, in order to rebuild the former security reasons or road traffic requirements of interim relief made if emergency repair fails, but to take major repair works, obviously the cost is very high.</P>
<P>Asphalt pavement maintenance technology trends at home and abroad with the road maintenance sector and government regulatory agencies focus on preventive maintenance for slurry seal surface treatment, micro surfacing, stone chip seal layer, a thin layer of hot pavement technology will be more perfect. At present, China highway conservation, it has been a large area of micro surfacing technology to improve water resistance and road friction coefficient and repair rutting; with slurry seal and fog seal layer adhered to do with grass roots highway surface layer junction layer.</P>
<P>Due to funding and awareness and other reasons, the promotion of preventive maintenance in our country can not be immediate, but the trend is irreversible. In other countries, the study of regeneration technology has gradually diversified, renewable Recycling Association and the International asphalt highway maintenance center from the annual exchange of papers in recent years can be seen, there has been full depth regeneration FDR technology, the use of foamed bitumen in cold recycling replace the asphalt emulsion technology, rubber emulsified asphalt slurry seal, slurry seal were recycled materials, and other fiber slurry seal.</P>
<p>Related Sites:<br />
<a href="http://roadcuttingmachine.com/blog/128.html">vibrating compactor</a><br />
<a href="http://roadcuttingmachine.com/blog/128.html">vibrating compactor</a><br />
<a href="http://roadcuttingmachine.com/blog/110.html">Tack Liquid Emulsion Sprayers</a><br />
<a href="http://roadcuttingmachine.com/blog/182.html">truck mounted asphalt hot box for infrared asphalt</a>
</p>
Statistics: Posted by qizhen0926 — Fri Jul 15, 2016 6:44 am