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Jinshan road was the longest trial pavement section to be rubblized with a resonant breaker in China and the total length of the project was 5689 m. The cross section consisted of motor lanes, non-motor lanes, barriers, and shoulders. Figure 1 illustrates the geometric dimensions of the cross section of the trial road. The design speed for the ...

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Depending on the tooth passing frequency, forced vibration or resonance of the elements of the machine may appear. At lower frequencies, usually under 150 Hz, it is possible to find resonance of the structural elements of the machine. At higher frequencies, usually higher than 500 Hz, resonance of the spindle-tool system and workpiece may occur.

decided to use a new technology, the resonant rubblization, to rehabilitate the deteriorated PCC pavement. 3.2. Rubblization and trench test The resonant breaker was imported from the Resonant Ma-chines Incorporation (RMI) in 2006. Figure 2 shows the pictures Qiu et …

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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).

with actual pavement breakers in conjunction with heavy roll­ ers was conducted in 1982. Since that date, Caltrans has re­ habilitated approximately 100 projects, representing over 1,000 lane-mi of PCCP truck lanes, with generally good success. Before adopting its current strategy, Caltrans evaluated sev­

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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{{5}}). Usually it takes about 14 to 18 passes for a resonant pavement breaker to …

The resonant breaker uses a resonant beam generating high frequency and low amplitude impacts to fracture concrete pavement. The breaking principle is 8 that the high-frequency, low-amplitude resonant energy delivered to the concrete slab results in failure along a shear plane at a 45-degree angle (Fitts, 2006).

Resonant pavement breaker (Figure 15 and Video 3). 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 (Figure 16) (Roberts et al., 1996{{2}}).

Concrete Breaking RMI’s Resonant Breakers can rubblize pcc pavement for an overly or break concrete into pieces and debond steel reinforcement for removal projects at 80% or better. In many cases wire mesh reinforcement is completely debonded. We break into multiple piece size ranging from 24” to 6” minus depending on contractor specs.

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The rubblizing process using a resonant breaker is defined as a fast fracturing process, where a machine breaks the pavement into small interlocked pieces. The principle of the machine is a massive steel beam, which vibrates through a frequency close to resonance.

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pavement after cracking and seating with guillotine hammer (WSDOT) .....12 Figure 3.5. At left, resonant pavement breaker used to rubblize PCC pavement; at right, PCC pavement after rubblization with a resonant pavement breaker (WSDOT). .....13 Figure 3.6.

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About the National Concrete Pavement Technology Center The mission of the National Concrete Pavement Technology Center is to unite key transportation stakeholders around the central goal of advancing concrete pavement technology through research, tech transfer, and technology implementation. Disclaimer Notice

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).

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Abstract. The resonance rubblization technology can be adopted to reconstruct old concrete pavement and eradicate reflection cracking. This method fractures pavement into fragments quickly and directly casts asphalt on fractures, shortening time cost of reconstruction.

HM-195 Concrete Resonant Frequency (Emodumeter™) measures the resonant frequency of concrete and other materials for determinations of Young's modulus, modulus of rigidity and Poisson's ratio. This device is used extensively in the lab for nondestructive analyses of …

Applied Pavement Technology, Inc. v LIST OF FIGURES Figure 1. Pavement demolition equipment: a) diesel hammer, b) multi-head pavement breaker, and c) resonant breaker (Hoerner et …

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Reference to this paper should be made as follows: Gopalakrishnan, K., Kim, S., and Ceylan, H. (2010). “Non-Destructive Evaluation of In-Place Rehabilitated Concrete Pavements,” the Journal of Civil Engineering and Management, Vol. 16, No. 4, pp. 552-560. Non-Destructive Evaluation of In-place Rehabilitated Concrete Pavements . Kasthurirangan Gopalakrishnan (Corresponding Author)

The resonant pavement breaker (RPB) utilizes vibrating hammers to destroy the concrete layer as well as to break the bond between the concrete and steel reinforcement. This approach has been less favored in recent years given that it may require numerous passes to destroy the concrete layer, which may not be feasible if the subgrade conditions ...

breaker. Resonant rubblization has been used successfully in 37 U.S. states and two Canadian provinces [Fitts 2006]. Arkansas has rubblized over 300 miles of her interstate highway using resonant breaker with excellent results [Decker and Hansen 2006]. Although rubblization using resonant breaker has been very common in US, it is a new ...

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