Nippon Glass Industry Co., Ltd.

Nippon Glass Industry Co., Ltd. Corporate Customers

Environmental improvement pavement

toukon soil

Ministry of Land, Infrastructure, Transport and Tourism new technology registration NETIS registration number: HRO30034-V

Inorganic environmental conservation pavement material "toukon Soil" made from natural decomposed granite soil (mountain sand) is a public works such as the Ministry of Land, Infrastructure, Transport and Tourism, such as gardens that emphasize landscapes, sidewalks and tree planting zones in natural parks. Active in construction and private works.
In addition, as we are working on global warming countermeasures on a global scale, excellent water permeability and water retention are attracting attention as a new material that also helps alleviate the heat island phenomenon.

Landscape that matches nature

Since the main component is natural decomposed granite soil and mountain sand, the color is almost the same as that of natural soil.
Therefore, unlike the existing white and black pavement, it does not give a feeling of killing.

Water permeability and water retention

Moderate water permeability enables the water supply to the trees naturally absorb water rain water, to prevent drying of the soil by the excellent water retention, it has the effect of promoting the growth of tree planting. In addition, water retention and moisture is in it to take the heat of the pavement at the time of evaporation, it will be relaxation of mitigation and heat island phenomenon of glare.

Reflection reduction effect

Reflection reduction effect part 2

Moisture retained evaporates due to direct sunlight or drying

The heat of vaporization due to evaporation robs the ambient temperature

Suppresses temperature rise near the pavement surface

Mitigation of reflection and mitigation of heat island phenomenon

Soil reduction

The main component is a natural material, the additives do not contain any harmful substances such as heavy metals, and the analysis result of wastewater (Environment Agency Notification No. 59) meets the safety standards. When not needed It can be crushed and returned to the soil.

No industrial waste treatment required

Eco-friendly products

Weed control effect

Weeds from below can be controlled by hardening the surface layer.
Use it under the median strip or guardrail to ensure safety, and use it on the sidewalk of the park or the approach part of the building to maintain the landscape.

Why transparent soil controls weeds

Phenomenon pattern of weeds growing from the pavement
pattern 1

Plant seeds fly to the soil and dust accumulated on the pavement and take root

Since the surface of the toukon soil pavement is hardened, the roots of plants do not penetrate into the pavement.
Therefore, weeds can be easily removed by removing the dirt and dust accumulated on the pavement surface.

pattern 2

It grows through the pavement surface from the soil under the pavement.

When the toukon soil is cured, it forms a strong layer and its strength is 100 kg or more (4 cm thick) of needle compression.
In addition, there are almost no weeds that grow by lifting 64 kg (4 cm thick) per 1 m2 of pavement weight.

Workability

The construction period can be shortened because it has a simple workability that allows this material to be evenly spread and sprinkled on a roadbed that has been rectified.
In addition, since it is not a locally kneaded product, it does not require heavy machinery or skilled workers, and even in the case of repair, it is only necessary to fill and sprinkle this material after partial cutting, so maintenance is easier.

[Estimated amount of transparent lump soil used]

Construction thickness Weight per square ㎡ conditions Use ㎡ Usage quantity
10% loss included
40mm 64㎏ People do not get on the pavement Tree planting basin / median strip
Roadside belt, etc.
3 bags
50mm 80㎏ There is a person's entry
About the extent that vehicles up to 2t can enter
Around the garden road / facility
Sidewalk / slope, etc.
4 bags
60mm 96㎏ Vehicles from 2t to 8t can enter
(kneading method)
Parking lot, etc. 4.5 bags

As a guideline for using 25 kg per bag * Please be sure to follow the usage amount.

About quality

exam grades

Test items Test results Test method
Bending strength 1.0N/mm2 JIS R 5201
Compression strength 4.0N/mm2
Permeable coefficient 10^-7cm/sec JIS A 1218
Freeze-thaw characteristics 30cycle ASTM666
Abrasion resistance 4.5mm/1000Times JIS K 7205
Slip resistance 81 BPN(When dry) ASTM E 303
69 BPN(When wet)

※All test specimens are measured at 28d intensity. The average value is rounded due to the characteristics of the product.

Design price (Kanto price)

toukon soil with 25 kg 1,800 yen