Henan Highway Guardian Transportation Technology Co., Ltd. Blog

Cold Asphalt Patch Step-by-Step: Permanent Pothole Repair in Any Weather

Cold asphalt patch lets crews repair potholes in cold or wet weather when hot mix is unavailable. This step-by-step guide covers cleaning, filling, compaction and pro tips.

2026.10.30

When Is the Best Time of Year to Seal an Asphalt Road? Temperature Guide

Sealing asphalt too cold, wet or humid causes early failure. This guide shows the ideal temperature and season for fog seal, slurry seal, micro-surfacing and crack sealing.

2026.10.30

Crack Sealant Buying FAQ: Melting Temperature, Crack Width and Shelf Life

Contractors ask us about hot-pour crack sealant temperature, crack width, routing and shelf life. This FAQ gives the practical answers buyers need before ordering.

2026.10.29

Preventive Asphalt Maintenance Cost Per Square Meter: A Contractor Budget Guide

What does fog seal, slurry seal, micro-surfacing or an ultra-thin overlay cost per square meter? This contractor guide breaks down unit cost, service life and the hidden costs that change the budget.

2026.10.29

Common Slurry Seal and Micro-Surfacing Failures: Causes and Prevention

Raveling, slow cure, streaking, reflection cracks and poor skid resistance are the most common slurry seal and micro-surfacing failures. Here is what causes them and how contractors prevent each one.

2026.10.29

Fog Seal vs Slurry Seal vs Micro-Surfacing vs Ultra-Thin Overlay: Which to Choose?

Not sure whether to choose fog seal, slurry seal, micro-surfacing or an ultra-thin overlay? This guide compares the four main asphalt preventive treatments by thickness, cost, traffic impact and pavement condition.

2026.10.29

Slurry Seal: A Complete Guide to Asphalt Pavement Preservation

Slurry seal is a cost-effective preventive maintenance treatment that sprays a cold-mix slurry of polymer emulsified asphalt, well-graded aggregate, water and additives onto an existing asphalt pavement. This guide covers materials, mix design, construction steps and quality control.

2026.10.28

Sand Fog Seal: Anti-Skid Preventive Maintenance Solution

Sand fog seal mixes water-based epoxy emulsified asphalt with basalt fine sand and sprays it on pavements to seal cracks, waterproof, restore flexibility and keep skid resistance. Guide to materials, adhesion and the six-step construction process.

2026.10.28

Fog Seal: Asphalt Pavement Sealing Guide

Fog seal sprays a light emulsified-asphalt or rejuvenating agent onto an asphalt pavement to seal minor cracks, stop water seepage and re-moisten aged binder. Guide to sand vs non-sand fog seal, materials, spray rate and quality control.

2026.10.28

Micro-Surfacing: Preventive Maintenance Guide for Highways

Micro-surfacing uses polymer-modified emulsified asphalt, graded aggregate, filler, water and additives mixed by a specialized paver and spread as a thin layer that can open to traffic within 1-2 hours. Guide to materials, MS-II/MS-III design, rut filling and quality control.

2026.10.28

NovaChip Ultra‑Thin Wearing Course: Advanced Preventive Maintenance Solution for High‑Grade Pavements

*Issued by Henan Highway Guardian Transportation Technology Co., Ltd. — Oct 10, 2026* ## Introduction NovaChip modified‑asphalt ultra‑thin overlay is one of the state‑of‑the‑art preventive maintenance technologies for high‑grade pavements. After years of field application, it has been widely promoted for expressway maintenance & rehabilitation projects across China. Thanks to its outstanding technical performance, it has become a preferred option for preventive maintenance of high‑grade highways.

2026.10.27

How to Seal Asphalt Cracks: A Step-by-Step Guide

Good crack sealing is mostly good preparation. This guide walks through the season, the equipment, the working steps, and the mistakes that shorten sealant life.

2026.10.15