PAVEMENT REHABILITATION RESONANT RUBBLIZING Recommended State Specification High Frequency Low Amplitude Resonant Breaker Resonant Breaker shall apply 2,000 lbs of ... – A free PowerPoint PPT presentation (displayed as an HTML5 slide show) on PowerShow.com - id: 47741d-MTE0Y
The resonant frequency and amplitude model has been presented based on its vibration analysis for the resonant part of the resonant cement pavement breaker.
Rubblization is a process of mechanically breaking the existing concrete pavement into smaller-sized pieces using heavy-duty pavement breakers, such as Resonant Pavement Breaker (RPB) and Multiple-Head Breaker (MHB).
Resonant pavement breaker (see Figure 10). This equipment strikes the rigid pavement at low amplitude with a small plate at the resonant frequency of the slab (usually about 44 Hz) causing the slab to break apart (Roberts et al., 1996).
equipment, multiple-head breakers and resonant pavement breakers, are typically used for rubblization. The multiple-head breaker rubblizes the slabs using a series of drop hammers. The breaking energy is dependent upon the lift height selected, the impact frequency, and the speed of operation (Antigo, 2018).
Case Study 2 Shanghai's Experience on Utilizing the Rubblization for Jointed Concrete Pavement Rehabilitation. As agencies continue looking for cost-effective methods to rehabilitate deteriorated JCP, rubblization using resonant breaker has been experimented by the Shanghai Municipal Roadway Authority (SMRA).
Quasco is a provider of concrete rubblizing and concrete breaking services and equipment. Quasco's resonant rubblizing process provides many benefits versus other methods of road rehabilitation such as crack and seat or remove and replace of a concrete surface.
Quasco works in conjunction with standard road re-surfacing equipment. Once a surface has been rubblized, it can be rolled with a standard vibratory roller to compact the new …
The other method uses a resonant breaker (RMI), which performs multiple passes across the lane width to rubblize the pavement. Texas has many miles of old jointed concrete pavements needed rehabilitation; thus, this project evaluated field projects and the rubblization process to develop guidelines for performing rubblization on Texas ...
Usually it takes about 14 to 18 passes for a resonant pavement breaker to rubblize an entire 3.6 m (12 ft.) lane (NCAT, 2001 [4]). Multi-head breaker (MHB) (Figures 17, 18 and Video 4). This equipment uses a series of independently controlled high amplitude drop hammers to smash the slab. Typically, there are between 12 and 16 hammers, each ...
Resonant Pavement Breaker After Raymond Gurries invented the RPB in the early 1980s, Howard Gudgell, a mechanical engineer, modified it. He literally reinvented the RPB to make it more powerful and durable. The modern RPB varies its settings to fit site conditions. According to the project's needs, RMI varies the size of the breaking machine ...
The resonant frequency pavement breaker is also equipped with a water spray system for dust suppression. The size of the pavement fragments is related to the speed with which the breaker travels and the amount of sub-grade support under the pavement. A slower travel speed results in smaller fragments. Voids or soft soil under the pavement ...
United Rentals carries a variety of powerful concrete breaking air equipment for rent to assist with your concrete and asphalt needs. Our pavement breakers range from 30 pounds up to 90 pounds to handle demanding, heavy-duty projects. For smaller, tough material demolition, we carry heavy duty air rock splitters for rent, perfect for chipping …
pavement breaking 2 blows per second at 7 mph Break 10-inch thick concrete into 18-inch pieces at up to 3,520 sq. yd./ hr. "As a concrete pavement breaker, the Impactor leaves material sized right for recycle crushing or for fill material.
This method combines the advantages of multiple head breakers, impact compactors, guillotine breakers, and resonant pavement breakers, which makes full use of the bearing capacity of the original ...
While most road work is an inherently disruptive activity, Quasco's resonant rubblization process minimizes the impact on a community. Less Downtime. The speed of the rubblization process allows roads to be …
Resonant pavement breaker is an excellent technique to reform worn cement concrete pavement (PCC). When the frequency of the machine adjusted to the resonant frequency of the worn cement concrete pavement, the pavement will be broken to discrete blocks. For the full use of this technique, this article studied the dynamic properties such as …
A Resonant Pavement Breaker (RPB), which employs a low amplitude, high frequency breaking shoe to strike the surface of the pavement, can break the concrete in place and leave pieces small enough to significantly reduce reflection cracking in the hot-mixed asphalt overlays. Researches on resonant rubblization technology can be divided …
The rubblizing process breaks the bonds between any reinforcing steel and the concrete, eliminates slab movement, and nearly eliminates the possibility of reflective cracking. …
Rubblizing is the process of fracturing pavement of Portland Cement Concrete into angular pieces for direct overlay. Resonant Machines, the pioneer of Rubblization, has …
9.3.1 Resonant Pavement Breaker. This equipment strikes the rigid pavement at low amplitude with a small plate at the resonant frequency of the slab (usually about 44 Hz) causing the slab to break apart as shown in Figure 7-6. Usually, it takes about 14 to 18 passes for a resonant pavement breaker to rubblize an entire 3.6 m (12 ft.) lane (NCAT ...
An electrohydraulic pavement breaker system having cavities ( 28, 30 ) which are filled with hydraulic fluid (oil) or gas, and which provide mass spring system which is resonant at a frequency which is especially adapted for breaking and rubblizing concrete pavement. The resonant mass ( 18 ) is in impacting relationship with the pavement through a shoe …
This method combines the advantages of multiple head breakers, impact compactors, guillotine breakers, and resonant pavement breakers, which makes full use of the bearing capacity of the original ...
This utility model is related to a kind of cement pavement breaker using resonance,Belong to field of cracking machine,The described cement pavement breaker using resonance includes electromotor、Frequency Adjustable sonic generator、Driver's cabin、High-pressure hydraulic pump、Acoustic wave transducer、Exciting …
As agencies continue looking for cost-effective methods to rehabilitate deteriorated jointed concrete pavement (JCP), rubblization using a resonant breaker has been experimented by the Shanghai Municipal Roadway Authority (SMRA). It was demonstrated that ...
The cost of a Pavement Breaker can vary widely depending on its size, capabilities, and complexity. Most of the price of Pavement Breaker ranges from US $ 1 to $ 10000 per Piece. It's important to research and compare different models and features to find the best Pavement Breaker for your needs and budget.
While most road work is an inherently disruptive activity, Quasco's resonant rubblization process minimizes the impact on a community. Less Downtime. The speed of the …
Resonant Frequency Breaker The Resonant Frequency Breaker is a self-propelled device that utilizes high frequency, low amplitude impacts with a force of 2000 pounds. The foot is located at the end of a pedestal that is attached to a beam and counter weight. The force applied to the pavement is achieved by
This equipment strikes the rigid pavement at low amplitude with a small plate at the resonant frequency of the slab (usually about 44 Hz) causing the slab to break apart (Roberts et al., 1996). Usually it takes about 14 to 18 passes for a resonant pavement breaker to rubblize an entire 12 ft. lane (NCAT, 2001).
An electrohydraulic pavement breaker system having cavities (28, 30) which are filled with hydraulic fluid (oil) or gas, and which provide mass spring system which is resonant at a frequency which is especially adapted for breaking and rubblizing concrete pavement. The resonant mass (18) is in impacting relationship with the pavement through a shoe (12), …
