High quality Diatom asphalt modifier

1. High quality diatom asphalt modifier 2. Diatomite bitumen modifier for highway contruction 3. Used in highway

Sichuan Honghui Technology Co.,Ltd. provides Diatomaceous earth in Sichuan, China.We devotes to ore mining, manufacturing and research. We have our own diatomite mine, research ourselves and purify by our own automatic production line which is the leading one in China.

Introduction of Diatomaceous earth:

Diatomite is aquatic plant diatomaceous debris sediments, its is very tiny, the size is about 10 u - 30 u. Due to more than one thousand years of underground buried, then formed the diatomaceous earth ore. The main content is SiO2. It has a large number of microspore, non-crystalline SiO2.

Our advantages

1. Our purify way: International advanced technology---Wet Cleaning Process

2. It maximizes reserve the kieselguhr's original structure

3. Keep a large number of SiO2: only the non-crystal SiO2 has the activity, we can keep 80% non-crystal SiO2. 

Chemical Composition

Item

PH

SiO2

Al2O3

Fe2O3

Na2O

MgO

K2O

CaO

TiO2

Ignition Loss

Active Silicon

6.5-7.5

85.00%

6.39%

2.71%

0.51%

0.64%

1.14%

0.43%

0.45%

6.33%

Technical index

Item

Index

Item

Index

Appearance

Gray white powder

Ignition Loss/%

<7

Gravity g/cm3

1.3~2.0

Moisture

<3

Bulk density /g.cm¯³

<0.45

Surface area/m²/g

66.53

Granularity /Micron mesh

300-500

porosity/%

85-93

Particle size/um

13-15

Impurity/%

8

PH

6-8

water content/%

2

Characteristic

 1. Containing large number of SiO2, so it has many nanometer micro holes both inside and outside.

2. Porous, Acid-resistant, Soda-resistant. Wide specific surface area, Stable chemical property, Thermo stabilization and High absorbability.

3. Easily attached to aggregate surface after being added into asphalt to decrease the fluidity of the asphalt, and then increase the modulus of elasticity.

4. As the Active silicon can improve the physical performance of the asphalt mixtures, it can decrease the penetration of asphalt in mixtures while increasing the soften point, residual stability and dynamic stability.

Function

1. Improving the adhesive ability and adhesive strength of asphalt in mixtures, then increasing the hardness of asphalt to change the high temperature performance of mixtures, then make the asphalt mixture high density, low permeability and decrease the growth rate of hardening in later period.

2. Improving the anti-aging, anti-strain of the road.

3. Substantially improving the anti-skidding, abrasive resistance and the chemical stability of the road

4. Improving the anti-corrosion, acid-resistance and soda-resistance of the road

5. The cyclic annular structure of active silicon can prevent the refraction of sunshine on the road, improve the safety of driving

6. As the active silicon can increase the density of the mixture materials, decrease the voidage, it can improve the shock absorption of the road.

7. Not affected by temperature, oxidation, sunshine, ultraviolet ray and other external conditions

Operation

Normally 12%~15% of asphalt quantity is better. If for intensive distribution of asphalt mixture or asphalt macadam, the quantity should be 12%±2%. If for anti-sliding layer pavement structure, the quantity should be 13%±2%. The maximum quantity of active silica is not exceed to 17%.

High quality Diatom asphalt modifier