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LZ-R1 Polyhydroxy Acid High-Performance Water Reducer

LZ-RA1 Rut-Resistant Agent is a modified material developed based on the "rock asphalt combined with polymer modification" technology, designed to enhance the load-bearing capacity of asphalt pavements. It enables ordinary asphalt concrete to achieve a dynamic stability level of 10,000 cycles/mm or higher, meeting both domestic and international high-modulus asphalt concrete technical standards as well as all technical specifications outlined in the industry standard for "Rut-Resistant Agents."

Category:

Modified Materials for Asphalt Pavements

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Product Description

Product Introduction

LZ-RA1 Rut-Resistant Agent is a modified material developed based on the "rock asphalt combined with polymer modification" technology, designed to enhance the load-bearing capacity of asphalt pavements. It enables ordinary asphalt concrete to achieve a dynamic stability level of 10,000 cycles/mm or higher, meeting both domestic and international high-modulus asphalt concrete technical standards as well as all technical requirements outlined in the industry standard for "Rut-Resistant Agents."

 

Product Advantages

1. Leveraging the advantages of two major categories of modifiers—natural macromolecular compounds and synthetic polymers—the composite modification significantly enhances pavement performance in areas such as rutting resistance, water damage resistance, low-temperature crack resistance, and aging resistance, thereby markedly extending the service life of asphalt pavements in heavy-traffic conditions and high-temperature, rain-prone regions.

2. Strong rutting resistance: Ordinary AC-type mixtures easily achieve a dynamic stability of over 10,000 cycles/mm;

3. Excellent resistance to water damage: The acid aggregate water-boiling peeling area ratio is < 5%; the dynamic stability of the acid aggregate immersion wheel-tracking test exceeds 3,000 cycles/mm, with no significant asphalt film stripping observed. Additionally, both the residual stability of the mixture and the freeze-thaw splitting strength ratio (TSR) exceed those of conventional modified asphalt.

4. Exhibits excellent compatibility with matrix asphalt and good melt-dispersion properties, effectively preventing issues like storage segregation, reducing the impact of processing techniques on the performance of asphalt mixtures, and minimizing energy consumption.

 

Parameter indicators

Project

Grade A 70# Asphalt

SBS (I-D)

LZ-RA1

Technical Requirements

Stability, kN

10.0

12.3

13.6

≥8.0

Flow value, mm

3.7

4.6

3.9

—

Residual Stability, %

89

88.2

91.8

≥85.80 (Wet Zone)

Dynamic stability, mm/sec

985

3891

11218

≥2800 (Hot Summer Zone)

Standard Splitting Strength, MPa

1.09

1.27

1.41

—

Freeze-thaw splitting strength, MPa

0.88

1.19

1.36

—

Freeze-thaw splitting strength ratio, %

81

93.7

96

≥80.75 (Wet Zone)

Damage strain, με

2555

3329

3260

≥3000, 2600 (Severe Winter Cold Zone)

 

Applicable Conditions

1. Asphalt pavements characterized by high traffic volume, significant heavy-load conditions, and a tendency to easily induce rutting damage;

2. Asphalt pavement on the long uphill sections of mountain roads;

3. High-grade highways in regions with high temperatures and abundant rainfall;

4. Municipal road bus stops, intersections;

5. Heavy-duty asphalt pavements at industrial parks, freight terminals, port docks, and similar areas;

6. Other sections where road rutting is particularly likely to occur;

7. Rehabilitation of rutting defects in existing asphalt pavements, as well as major and medium repairs with overlay projects for asphalt road surfaces.

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