Concrete pavement/Road related technology
| What Is Concrete Pavement? | Taiheiyo Cement's Unique Technologies | |||||||
|---|---|---|---|---|---|---|---|---|
| ＞Introduction | ＞Features | ＞Concrete pavement types | ＞SMART JET CONCRETE® | ＞Tohaicrete | ＞Applications | |||
| What Is Concrete Pavement? |
|---|
| ＞Introduction |
| ＞Features |
| ＞Concrete pavement types |
| Taiheiyo Cement's Unique Technologies |
| ＞SMART JET CONCRETE® |
| ＞Tohaicrete |
| ＞Applications |
Applications
Jointed plain concrete pavement
Jointed plain concrete pavement is applied for traffic roads in our laboratory. The concrete for pavement with a slump of approximately 6.5 cm was transported using truck agitators, placed and finished without heavy road construction equipment.
Roller compacted concrete pavement using eco-cement
Roller compacted concrete pavement using normal eco-cement was experimentally applied. In order to reduce environmental load, the construction uses normal eco-cement made from ash of incinerated municipal waste as the main ingredient.
The concrete is transported using a few dump trucks and leveling is performed using an asphalt finisher/paver. Compacting was performed using a vibrating roller and tire roller.
This construction seeks to realize pavement which reduces environmental load in terms of materials, and which uses high-durability concrete pavement in consideration of the lifecycle for both environmental and cost benefits.
The concrete is transported using a few dump trucks and leveling is performed using an asphalt finisher/paver. Compacting was performed using a vibrating roller and tire roller.
This construction seeks to realize pavement which reduces environmental load in terms of materials, and which uses high-durability concrete pavement in consideration of the lifecycle for both environmental and cost benefits.
Construction information
Location : Sodegaura City, Chiba Prefecture
Period : March 2014
Area : 270㎡
Reference
- Masao Ishida et al. : "Test Construction for Roller Compacted Concrete Pavement Using Normal Eco-Cement" Pavement, Vol. 50, No. 5, pp. 22-27, 2015
- Masao Ishida et al. : "A Study on Mechanical Properties of Extremely Dry Concrete Made with Ecocement and Its Application to Roller Compacted Concrete Pavement" Taiheiyo Cement Research Report, 166, pp. 24-35, 2014
- Atsushi Ueno : "Extremely Dry Concrete for Pavement made with Normal Eco-cement " CEM's, No. 59, pp. 4-6, 2013
Pervious concrete pavement (road usage/high-performance)
Pervious concrete pavement, which realizes driving safety and comfort during rain, was applied for roads and parking. Pervious concrete of Taiheiyo Cement is high flexural strength and satisfies the targeted value for vehicle roads. In this example, we also performed test construction for high-performance porous concrete pavement to which high-strength concrete technology has been applied in order to further increase porosity, permeability, and drainage capacity. In addition to possessing an even higher level of permeability, the primary water storage of high-performance pervious concrete is 1.3 times that of conventional pervious concrete. Therefore, this concrete is expected to help to suppress flood disaster in urban area.
For test construction, concrete is manufactured at a ready-mixed concrete plant and transported using a few truck agitators. Leveling is performed using an asphalt finisher/paver and the surface is finished using a hand guide roller.
For test construction, concrete is manufactured at a ready-mixed concrete plant and transported using a few truck agitators. Leveling is performed using an asphalt finisher/paver and the surface is finished using a hand guide roller.
Construction information
Location : Sakura City, Chiba Prefecture
Period : November 2013
Area : 420㎡
Reference
- Toshihito Shimada et al. : "Test Construction for Porous Concrete Pavement Used in Vehicular Roads and Review of Road Surface Performance", 2014 JSCE (the Japan Society of Civil Engineers) Annual Meeting (the 69th), V-516, pp. 1031-1032, 2014
- Masao Ishida et al. : "Study of Workability and Road Surface Performance of High-Performance Porous Concrete Pavement", the 30th Conference of the Japan Road Association, 3145, 2013
- Masao Ishida et al. : "Application of High-Strength Concrete Technology to Pavement Usage", Taiheiyo Cement Research Report, 161, pp. 55-65, 2011
Interlocking concrete block pavement
We conducted test construction using interlocking concrete blocks which possess a variety of functionality and performance, including permeability which improves the safety and comfort of driving/walking during rain, and water retention and thermal insulation which reduces the road surface temperature and suppresses increases in ambient temperature. In addition to serviceability, we also confirmed the effect of reducing road surface temperature. In this test construction, we used normal eco-cement in order to achieve further reductions in environmental load.
Construction information
Location : Sakura City, Chiba Prefecture
Period : March 2014
Area : 260㎡
Reference
- Hiroaki Nakamura and Kenichi Matsumoto: "Study of Road Surface Temperature Characteristics of Various Types of Interlocking Block Pavements", the 31st Conference of the Japan Road Association, 3043, 2015
Early-opening-to-traffic cement concrete pavement (very high early strength, rapid-hardening, high early-strength)
The Taiheiyo Cement Group possesses two types of rapid-hardening concrete. This technology makes it possible to shorten the curing time and traffic opening periods for concrete pavement, and can be applied to repair, strengthening and reconstruction of pavement. Currently, we can support curing completion time from 3 hours to 24 hours, including the product "1 DAYPAVE" developed by the Japan Cement Association. Until now, we have performed test construction at the two locations listed below. At both locations, we confirmed superior workability and high strength after completion of curing in the prescribed period of time. Currently, we are continuing to confirm the service condition of the locations. After about one year from the start of service, we have confirmed that favorable conditions are maintained at both locations.
Super Jet Concrete
＞Onoda Chemico co., ltd
＞Onoda Chemico co., ltd
This concrete uses the very high early strength cement "Super Jet Cement" and is manufactured using the dedicated batching and mixing track mixer called the “Batcher-Jet-Mixer-Track” which is located on the construction site.
Facet Concrete
＞Taiheiyo Materials corporation
＞Taiheiyo Materials corporation
This rapid-hardening concrete is manufactured onsite by adding the rapid-hardening admixture called “Facet” to ready mixed concrete.
1DAY PAVE
＞Japan Cement Association
＞Japan Cement Association
This concrete enables completion of curing in a 24-hour period without using special materials or construction equipment.
Reference
- Hidenori Takahashi et al. : "Study of Applicability Using Test Pavement of Concrete With Early Strength Development Properties", the 31st Conference of the Japan Road Association, 3096, 2015
- Yasuhiro Goto et al. : "Test Construction Examples for Continuous Reinforced Concrete Pavement Using Rapid-Hardening Concrete", CEM'S, No. 63, pp. 6-10, 2014
- Kenichi Matsumoto et al. : "Applicability of Concrete With Early Strength Development Properties to Pavement", 2014 JSCE (the Japan Society of Civil Engineers) Annual Meeting (the 69th), V-517, pp. 1033-1034, 2014
- Hiroaki Nakamura et al. : "Study of Applicability for Concrete Allowing Early Opening to Traffic as a Reconstruction Method", the 69th Annual Meeting JCA (the Japan Cement Association), pp. 212-213, 2015
| CASE 1 | Test construction in Sanyo-Onoda City, Yamaguchi Prefecture |
|---|
Construction information
Location : Sanyo-onoda City, Yamaguchi Prefecture Period : November 2013 Area : 246㎡
Test results
| CASE 2 | Test construction in Sakura City, Chiba Prefecture |
|---|
Construction information
Location : Sakura City, Chiba Prefecture Period : November 2014 Area : 111㎡
Test results
Repairing materials for concrete pavement
① Surface treatment method
We conducted thin-layer repairs using repair materials envisioned for areas subject to frictional wear.
Chichibu Crete Box-P
＞Chichibu concrete industry.,co.,ltd
② Patching method
We conducted partial repairs using repair materials envisioned for broken corners and potholes.
Taiheiyo Gum-Late Mortar
＞Taiheiyo material corportion
③ Reconstruction method
We conducted test construction which envisioned the partial replacing method using rapid-hardening concrete.
Super Jet Concrete
＞Onoda Chemico co., ltd
Concrete pavement in the central research laboratory
Various types of concrete pavement, porous concrete, interlocking block, repaired section and so on, are applied for roads and parking in our Central Research Laboratory.Every visitor can observe all pavements.
