Henan Highway Guardian Transportation Technology Co., Ltd. Blog

Slurry Seal vs Micro-Surfacing: Which Preventive Treatment to Choose

Slurry seal and micro-surfacing look similar but they are not interchangeable. Micro-surfacing uses polymer-modified emulsion and finer graded aggregate for heavier traffic and rut filling; slurry seal is a lighter, cheaper seal for lower-volume roads. Here is how to choose.

2026.11.04

Pothole Repair Decision Tree: Cold Patch vs Hot Mix vs Overlay

Not every pothole deserves the same repair. A shallow surface hole needs cold patch, a deep alligator area needs hot-mix patching, and a distressed road segment needs an overlay. This decision tree helps contractors choose the right repair the first time.

2026.11.04

NovaChip Ultra-Thin Overlay: Step-by-Step Construction Process

NovaChip ultra-thin wearing course looks simple but every step - from tack coat to compaction temperature - controls whether it lasts 8 years or cracks in 2. This guide walks highway contractors through the full NovaChip construction sequence with the key temperature and thickness numbers.

2026.11.04

Choosing Road Maintenance Materials by Climate: Cold, Hot and Wet Regions

The same emulsified asphalt or crack sealant that works in a mild coastal climate will fail in a freeze-thaw zone or a 50-degree desert. This guide matches slurry seal, fog seal, crack sealant and cold patch to cold, hot and wet climates for overseas road contractors.

2026.11.03

Crack Sealing Machine Buying Checklist: 10 Specs Contractors Must Verify

A crack sealing machine that cannot hold temperature, cannot pour at low temperature or clogs after 300 meters will stall your whole crew. Here are the 10 specifications overseas contractors should insist on before placing an order for a road crack sealing machine.

2026.11.03

Bridge Deck Waterproofing: 12-Point Application Quality Control Checklist

Bridge deck waterproofing fails not because the coating is bad, but because surface prep and curing are rushed. This checklist gives highway and bridge contractors the 12 inspection points that separate a 10-year waterproofing system from one that blisters and delaminates in two winters.

2026.11.03

Micro-Surfacing Service Life: When to Re-Seal vs Overlay

How long does micro-surfacing last, and when should you re-seal instead of paving an overlay? This lifecycle guide helps engineers plan preventive maintenance cycles.

2026.11.02

Sand Fog Seal vs Plain Fog Seal: When Anti-Skid Filler Matters

Plain fog seal restores color and binder, but sand fog seal adds fine aggregate to preserve skid resistance. This guide compares the two and helps you choose the right treatment.

2026.11.02

Buying Road Maintenance Materials Overseas: MOQ, Lead Time and Packaging Guide

Ordering crack sealant, cold patch and emulsified asphalt from abroad means planning MOQ, lead time, packaging and customs. This guide helps overseas contractors plan a smooth supply.

2026.10.31

How to Prepare a Road Surface Before Slurry Seal or Micro-Surfacing

Slurry seal and micro-surfacing fail when the surface is not prepared first. This pre-construction checklist covers crack repair, cleaning, drainage and traffic control.

2026.10.31

How to Choose the Right Emulsified Asphalt for Road Maintenance

Cationic vs anionic, rapid vs slow set, polymer-modified for high traffic: this guide explains how contractors choose the right emulsified asphalt grade for fog seal, slurry seal and micro-surfacing.

2026.10.30

Slurry Seal Mix Design Basics: Emulsion, Aggregate and Water Ratios

A slurry seal or micro-surfacing layer depends on balancing emulsion, crushed fine aggregate and water. This guide explains what each component does and how the mix should behave on the paver.

2026.10.30