Cemented Tailings Research Articles

Study on permeability performance of cemented tailings backfill based on fractal characteristics of pore structure

The permeability of the backfill has a significant impact on the leaching and transport ability of pollutants to groundwater through the backfill area, and the way of pollutants enter the backfill mainly depends on the pore structure inside the backfill. Therefore, permeability is also a reflection of pore structure characteristics. The test used mine tailings as aggregate, Portland cement (PC 32.5) as cementing material, and added different additives (lime, fly ash, and anionic polyacrylamide (APAM)) to make backfill samples with a mass concentration of 74% and a cement-sand ratio of 1:4 and 1:6, respectively. Four groups of backfill samples with curing ages of 3d, 7d, and 28d were tested by nuclear magnetic resonance (NMR) and centrifugal testing machines, and the T2 spectrum distribution characteristics of the samples before and after centrifugation were obtained. According to the test results and fractal theory, it is found that the four groups of backfill have double fractal characteristics. With the increase of curing age or cement-sand ratio, the fractal dimension of small aperture distribution (Dmin) of backfill pore structure generally increases, while the fractal dimension of large aperture distribution (Dmax) and permeability gradually decrease. Dmax represents the number of large pores and has a high correlation with porosity, indicating that it has a great influence on porosity. The high degree of correlation between permeability and Dmin indicates that the formation of water passage in backfill is related to fine pores. Meanwhile, the permeability prediction results using the correlation between the fractal bound water saturation model and the Coates model show that the measured and predicted values of the bound water saturation, and the predicted permeability values and the calculated values of the Coates model all fit well, which verifies the feasibility of this method.

Effect of waste glass powder on pore structure, mechanical properties and microstructure of cemented tailings backfill

In order to reduce the filling cost of the mine and improve the performance of the cemented tailing backfill (CTB), waste glass powder (WGP) is introduced into the CTB as a substitute for cement in this paper. The study examined pore structure, mechanical properties and microstructure changes of CTB samples based on 0, 10, 20, and 30 % WGP replacement rates. The following conclusions are obtained, the pore size of CTB is divided into micropores, secondary pores, and macropores with the boundary of 20 nm and 200 nm, and the pores in CTB are mainly macropores. The incorporation of WGP can improve the pore structure of CTB. The hydration of CTB with WGP can be divided into two parts. Before the curing time is 56d, cement dominated hydration occurs in CTB. WGP mainly plays the role of micro aggregate effect in filling the pores of CTB, and the strength of CTB decreases with the increase of WGP replacement rate. After 56d of curing, cement hydration rate slows down. The pozzolanic activity of WGP is activated under strong alkaline environment, and the secondary hydration reaction enhances the long-term strength of CTB. Especially for CTB with a replacement rate of 20 %, the particle peeling on the surface of the sample is improved after unconfined compression and its microstructure is more compact, the Ca/Si ratio is significantly increased after long-term curing.

Fracture Process Analysis and Acoustic Emission Response of Cemented Tailings Backfill with Different Sizes under Uniaxial Compression.

To investigate the effect of dimensional changes on the mechanical properties of cemented tailings backfill (CTB), uniaxial compression tests are performed on square CTBs of four different sizes. Combining digital image correlation (DIC) and acoustic emission (AE) methods, the fracture process and AE behavior characteristics of backfills with different sizes are analyzed. The results show that as the backfill size increases, its uniaxial compressive strength decreases, and its strength stabilizes gradually when it measures 100 mm. Under uniaxial compression loading, surface cracks on the smaller specimens evolve rapidly and aggressively, with no significant shedding area, whereas the larger specimens show plastic failure. The cracks expand and penetrate gradually, forming a large shedding area. As the specimen size increases, the backwards trend of the peak value of the ringing count relative to the peak value of the stress becomes increasingly evident. Combining the change law between the r value and the average frequency centroid, the sudden drop point of r value and the lowest value of average frequency centroid can be regarded as the precursor of macroscopic damage.

Monitoring of in-situ properties for cemented tailings backfill that under drainage condition

Cemented tailings backfill technology is commonly applied to fill mined-out areas generated by mining activities. Understanding the evolution of physical and mechanical properties of tailings backfill is important for the design of a safe and high-efficient backfill system. The in-situ performance monitoring experiments in the real stope and the in-situ similarity simulation monitoring experiments (under the drainage and undrainage conditions) are conducted. The evolution mechanisms of in-situ properties such as bleeding rate, sedimentation rate, temperature, pore water pressure, total stresses, and effective stress during the curing of tailings backfill are analyzed. The results indicate that the sedimentation rates for the tailings backfill under drainage and undrainage conditions are 6.07% and 3.99%. The average maximum temperatures are 37.5 and 33.9 °C. The setting times under the two conditions are 7.1 and 355.2 h. Comparatively, the setting time measured in the stope where one filter pipe is installed is 22.6 h, indicating that the drainage condition significantly affects the sedimentation, temperature, and setting in the field tailings backfill. As the height of the tailings backfill increases, the deviation between the theoretical value and measured data for the total stresses in the field tailing backfill gradually enlarges. This phenomenon suggests that the arching of pressure formed at lower tailings backfill could reduce the load, and contribute to the stability of stopes. In addition, the effects of filling speed and backfill height on the evolution of the total stresses are discussed.

Experimental study on energy dissipation of layered backfill under impact load

• The dynamic characteristics of layered cemented tailings backfill(LCTB) were studied by SHPB test system. • The failure of LCTB mainly occurs at the delamination of the specimen. • The reflected and absorbed energy of specimens gradually increases and the transmitted energy gradually decreases as the number of layers increases. • The specific energy absorption value (J EA ) and dissipation rate were significantly positively correlated with the number of layers. The failure of the cemented tailing backfill (CTB) under the impact load is mainly related to the absorption and dissipation of energy; in order to obtain the corresponding dynamic characteristics and energy evolution law, The diameter is 50 mm split Hopkinson pressure bar (SHPB) test system was conducted to investigate the influence of different layers, cement tailing ratios (CTR) and impact rates on the failure mode, dynamic stress–strain curve and energy evolution of the LCTB. The results show that: (1) with the increase in the number of layers, impact rate and CTR, the dynamic peak stress of the CTB gradually increases. When the impact rate is constant, the strength of the CTB gradually decreases with the increase of the number of layers. (2) With the increase in the number of layers, the reflection energy and absorption energy, specific energy absorption value (JEA) and dissipation rate of the CTB gradually increase while the transmission energy decreases gradually; with the increase of incident energy, the energy increment and dissipation rate of the CTB increase first and then decrease, suggesting that the energy absorption of the CTB will not change greatly when the incident energy increases to a certain extent. (3) Due to the filling layer, the basic particles forming the CTB will slip relatively at the layer while the stress wave acting on the layer, which intensifies the dynamic process at the layer and eventually induces the fracture of the CTB specimen along with the layer. With the increase in impact rate, the failure mode of the CTB without delamination mainly includes shear failure and axial splitting failure. Finally, this research can provide important theoretical support for the further study of underground LCTB.

Study on macro-meso mechanical properties of cemented tailings backfill with high fly ash content.

The use of cement and fly ash (FA) to prepare cemented tailings backfill (CTB) lowers backfill mining costs while also reducing pollution caused by the accumulation of waste materials like tailings and FA, making it a green backfill mining process. While adding FA to CTB may reduce costs, too much FA might weaken CTB's strength property. Mechanical tests were used to explore the effects of FA content and curing time on the uniaxial compressive strength (UCS) and deformation modulus of CTB in this research. The effects of FA content on failure modes, strain energy, and crack evolution of CTB were studied using a numerical model that considered FA content and particle contact mode. The influence mechanism of different FA contents on CTB was also revealed at the microscopic level. The results demonstrate that the UCS of CTB has a quadratic polynomial and a linear relationship with FA content and curing time respectively, and that the elasticity modulus and secant modulus of CTB increase and then decrease with FA content under different curing times. The peak strain energy of CTB increases and subsequently declines with the FA content, and crack propagation inside CTB may be limited by regulating the FA content. A reasonable content of FA can optimize the size and distribution of CTB microscopic defects, enabling them to exhibit superior strength property. This study systematically explores the mechanism of different FA contents on the strength property of CTB from a macro-micro perspective, providing an essential reference value for improving the recycling of FA and waste residues such as tailings.

Study on Acoustic Emission and Coda Wave Characteristics of Layered Cemented Tailings Backfill under Uniaxial Compression

The paper analyzes the effects of filling times and filling interval time on the acoustic emission characteristics and coda wave characteristics of layered cemented tailings backfill under uniaxial compression and, to a certain extent, enriches the study of layered cemented tailings backfill in this field. The work aims to monitor the early warning of layered cemented tailings backfill with different layering factors during deformation and damage by the changing law of acoustic emission and ultrasonic signals. By conducting uniaxial compression tests, acoustic emission, and ultrasonic tests of layered cemented tailings backfill, the acoustic emission parameters and their fractal characteristics of layered cemented tailings backfill with different layering factors during uniaxial compression were calculated. Meanwhile, the variation law of the coda wave velocity variation rate of layered cemented tailings backfill during uniaxial loading was analyzed using coda wave interferometry. The test results show the feasibility of using acoustic emission and ultrasonic means to monitor and warn about the deformation damage of layered cemented tailings backfill.

Study on the nonlinear deformation characteristics and constitutive model of cemented tailings backfill considering compaction hardening and strain softening

The deformation characteristics of the cemented tailings backfill (CTB) has a significant influence on the stability of mine stope and surface subsidence after filling mining. An uniaxial compression experiment of the CTB containing different cement-tailings ratios (c/t) has been performed and it shows that the CTB has an obvious compaction hardening in the initial compaction stage and strain softening at the plastic yield stage. However, these nonlinear deformation characteristics of CTB are not fully understood in the previous studies. In this research, considering the nonlinear deformation characteristics, a complete constitutive model was proposed for the CTB based on the experimental stress–strain curves. This constitutive model has been programmed into FLAC3D to obtain the law of surface subsidence and assess the safety of the concentrator if the backfill method is adopted. In addition, a physical model experiment of filling mining is also carried out at the same condition. The results of these two simulation experiments show that the surface subsidence is negatively correlated with the distance between the concentrator and the collapse pit, and the maximum subsidence is less than 90 mm. Therefore, the filling mining method can effectively guarantee the safety of concentrator. This study provides a better understanding of the deformation characteristics of CTB and it also contributes to the underground filling technology of using CTB.

Mechanical properties of cemented tailings backfill under true triaxial loading condition

Mechanical properties of cemented tailings backfill under true triaxial loading condition

Influence of types and contents of nano cellulose materials as reinforcement on stability performance of cementitious tailings backfill

This study explores the quality of cemented tailings backfill (CTB) reinforced with diverse nano cellulose materials (NCMs) such as micro-fibrillated cellulose (MFC), hydroxylated cellulose nanofiber (CNF), and cellulose crystal (CNC) at macroscopic/microscopic levels. Uniaxial compressive strength (UCS), cracking/failure patterns, deformation analysis, and microstructure of NCM-reinforced CTB samples were thoroughly explored. The results are as follows: the addition of CNF, CNC and MFC to samples augmented its UCS values by 0.95 MPa to 1.39 MPa, 1.43 MPa and 1.29 MPa, respectively. A two-aspect effect on UCS of CNF-, CNC–, and MFC-based samples was observed, namely an escalation followed by a reduction. The optimal concentration of NCM-reinforced CTB samples is 0.9 kg/m3, and the strengthening effect of CNC on CTB is better than CNF and MFC. The cracks witnessed in CTB were created in the stress clouds after loading. NCM-reinforced CTB’s failure pattern was portrayed by tensile/shear failure. Addition of NCMs to CTB well-inhibited crack propagations. Three types of nano cellulose showed diverse morphologies at 2000X, but CNF, CNC and MFC on cracks capably upgraded CTB’s strength characteristics. It was lastly proven that unlike synthetic fibers, incorporating NCMs as a reinforcing material in fill could be a wise solution for boosting CTB recipes in terms of cost-efficiency, operational ease, and sustainability.

Investigation on fracture characteristics and failure pattern of inclined layered cemented tailings backfill

The fracture characteristics of the layered cemented tailings backfill (LCTB) as an artificial false roof in underhand cut-and-fill mining would directly affect the personal safety of workers. For this reason, the non-layered cemented tailings backfill (NS-CTB), 2-layered (2-S), and 3-layered (3-S) LCTB with 0°, 5°, and 10° layered angles (LA) were prepared respectively for three-point bending experiments, and the microscopic crack evolution law and failure mode were simulated and analyzed by PFC 3D. The results revealed that the flexural strength (FS) and peak deflection (PD) of the LCTB decreased with the increase of the number of layers (NL), and the rate of decline increased gradually. The bending modulus (BM) and post-peak toughness (PPT) of the LCTB gradually rise with the increase of the NL. The FS and PD of the LCTB were inversely correlated with the LA, the BM and PPT tended to decline first and then increase, and reached the lowest when the LA was 5°. When the LA is greater than 5°, the bearing structure of the LCTB changes greatly, and the FS and PD of the LCTB have indeed fallen substantially. The numerical simulation results reveal that at the initial loading stage, the LCTB merely breaks and produces a small amount of cracks at the loading point in contact with the wall and layered contact surface. When the LCTB approaches the FS, a large number of cracks are generated and penetrate the LCTB, and then the total number of cracks curve enters the stable stage. All groups of CTB are destroyed by the lower part in tension initially, and then the cracks expand upward through the CTB, culminating in macroscopic failure to the CTB. The cracks of the NS-CTB expand in a smooth curve, while the cracks of the LCTB expand to the intersection of the layered contact surface and the loading direction with an obvious inflection point, and expand downward along the layered contact surface. Finally, this research explores the macroscopic fracture characteristics and microscopic failure patterns of non-horizontally LCTB, and the results of this study can provide a reference for the design and application of LCTB in the field of underhand cut-and-fill mining.

Mechanical properties and acoustic emission response of cemented tailings backfill under variable angle shear

To investigate the mechanical properties and acoustic emission (AE) response of cemented tailings backfill (CTB) under the action of compression–shear, 30°, 45°, and 60° variable angle shear tests (VAST) were conducted. Based on the stress–strain law and AE parameter characteristics, the rupture law of the CTB with different shear angles was analyzed. The evolution of the fractal dimension (FD) and b-value and the relationship between them were investigated. The results indicate the following: (1) With increasing shear angle, the peak stress and normal stress show a decreasing trend, the plastic yield stage shortens or disappears, and damage evolution is accelerated; with a shear angle greater than 45°, the specimen deformation and damage mode change. (2) The AE ringing counts and energy evolution at 30° and 45°, and the ringing count evolution at 60° show an inverted U-shaped distribution; the energy evolution at 60° shows a stepped distribution. As the shear angle increases, the active and decline periods move rearward, and the proportion of ringing count and AE events before peak stress decreases. (3) With increasing shear angle, the crack evolution mode of the specimen changes from intermittent local failure repeatedly to progressive expansion. The fracture evolution is a dimensionality reduction and an orderly process; before failure, crack development is a process from disorder to order, producing a state in which large-scale crack propagation stabilizes and small-scale cracks expand. The conclusion provides a basis for analyzing the rupture evolution of CTB under different compression–shear angles and provides a reference for the stability analysis of CTB backfilled goaf.

Coupled electromagnetic heat transfer model for cemented tailings backfill cured by microwave energy

Cemented tailings backfill (CTB) is a composite material containing binder, tailings and water, and it is commonly made available for filling mine-out areas and managing waste tailings. When backfilled, the CTB strength and its gain rate should be guaranteed for safe and efficient mining. It is acknowledged that increasing the CTB temperature is beneficial to its strength development. For this reason, microwave heating is introduced and applied to raise the CTB temperature quickly and thus accelerate its strength gain. To date, no numerical research has been conducted to investigate the electromagnetic and thermal properties of microwave cured CTB. Therefore, the present study proposes a coupled electromagnetic heat transfer model for the CTB heated by microwave energy. This proposed model considers the conversion of energy (electrical to electromagnetic and then to thermal), courses of heat conduction and convection, and relevant temperature variation. Two groups of experimental data are used to verify the prediction ability of the model simulation, and this model can accurately describe the thermal properties of the microwave heated CTB. Based on the validated model, the effects of input power, frequency and sample dimension on the distribution of heat and electromagnetic field are discussed. This study can be a contribution to the optimization of microwave parameters and sample dimension, for higher temperature development, less energy consumption and more uniform heating, in future laboratory experiments and field applications.

One-part alkali-activated slag binder for cemented fine tailings backfill: proportion optimization and properties evaluation.

In this study, a one-part alkali-activated slag (AAS) composed of ground-granulated blast furnace slag, desulfurized gypsum, and hydrated lime is proposed as alternative to cement for the production of cemented fine tailings backfill (CFTB), which is an environmentally friendly binder consisting of 93.72 wt.% industrial solid waste. Results show that AAS with 67.83 wt.% slag, 25.92 wt.% desulfurized gypsum, and 6.25 wt.% hydrated lime yields the highest strength, which is 1.7-3.2 times that of ordinary Portland cement (OPC). Aside from calcium silicate hydrate gel, appreciable quantity of ettringite characterized by interlocking needles structure and high bound water is also produced during the AAS hydration process. In addition, the hydration heat of the AAS binder is 48% less than that of OPC. Moreover, CFTB made of AAS provides better workability than that of CFTB with OPC up to 20h. The findings of this study will contribute to the production of more cost-effective, durable, and environmental-friendly cemented fine tailings backfill.

Comparative Analysis of Strength and Deformation Behavior of Cemented Tailings Backfill under Curing Temperature Effect.

Mineral resources are increasingly being developed in cold and permafrost regions. However, the mechanical and physical properties of cemented tailings backfill (CTB) cured at normal temperature are no longer applicable. To clarify the reasons for this variability, a series of tests were performed. The mechanical properties of CTB with different cement–tailings ratios (CTR, 1:4, 1:8, 1:12, 1:16, and 1:20) were tested at different curing ages (3, 7 and 28 days) and curing temperatures (20 °C, 5 °C, −5 °C, and −20 °C). The differences of CTB in mechanical and physical properties under positive- and negative-temperature curing conditions were analyzed, and the microscopic failure process of CTB under negative-temperature curing conditions was discussed. The results revealed that the mechanical properties and deformation behavior of CTB under positive- and negative-temperature curing conditions were different. The frozen CTB had higher early strength than the standard-temperature curing condition (20 °C), and the lower the temperature, the higher the early strength. The low-temperature curing condition, on the other hand, was not beneficial to CTB’s long-term strength. The low-temperature curing condition was not conducive to the long-term strength of CTB. After yielding, strain hardening and strain softening appeared in the deformation behavior of frozen backfill, indicating ductility. In contrast to the typical-temperature curing condition, the frozen CTB showed a new failure pattern that has little relation to curing time or CTR. Furthermore, the failure process of frozen backfill was reviewed and studied, which was separated into four stages, and altered as the curing time increased. The results of this study can act as a guide for filling mines in permafrost and cold climates.

Mechanical properties and deformation mechanism of stratified cemented tailings backfill under unconfined compression

Studying the deformation mechanism of stratified cemented tailings backfill (SCTB) is of great significance to determining the reasonable strength of the backfill and reducing the filling cost. In this study, the SCTB samples with 0,1,2,3, and 4 stratified surfaces are prepared. Mechanical tests were carried out on the samples, in which the digital image correlation method and scanning electron microscopy (SEM) analyses were conducted on the layered backfill samples. The findings indicated that the existence of stratified surfaces causes a significant deterioration in the uniaxial compressive strength and elastic modulus of the SCTBs, but increases its deformation capacity. During the loading process of the SCTBs, the stratified surfaces always present a compressed state and the average strain of the SCTBs is greatly affected by the stratified surfaces. The macro–micro-cracks at the stratified surfaces could be divided into two types: cracks passing through the stratified surfaces (CPSSs) and cracks not passing through the stratified surfaces (CNPSSs). The SEM results indicated that there was a greater abundance of CNPSSs than CPSSs, meaning the stratified surfaces inhibited the propagation of micro-cracks. With the increase of the number of stratified surfaces in SCTBs, the stratified surfaces compression displacement (SSCD) of a pair of stratified surfaces decreases.

Coupled effects of fly ash and calcium formate on strength development of cemented tailings backfill

Cemented tailings backfill (CTB) is widely adopted to ensure the safety of underground goafs and mitigate environmental risks. Fly ash (FA) and calcium formate (CF) are common industrial by-products that improve the mechanical performance of CTB. How the coupling of the two components affects the strength development is not yet well-understood. Neural network modelling was conducted to predict the strength development, including the static indicator of uniaxial compressive strength (UCS) and the dynamic indicator of ultrasonic pulse velocity (UPV). Sobol' sensitivity analysis was carried out to reveal the contributions of FA, CF and curing time to CTB strength. SEM microstructure investigation on CTB samples was implemented to reveal the mechanism of strength development and justify the predictions by neural network modelling and sensitivity analysis. Results show that the combination of FA content, CF content and curing time can be used to predict both UCS and UPV while providing adequate accuracy. The maximum of UCS of 6.1215MPa is achieved at (FA content, CF content, curing time) = (13.78 w%, 3.76 w%, 28days), and the maximum of UPV of 2.9887km/s is arrived at (FA content, CF content, curing time) = (11.67 w%, 3.08 w%, 10days). It is also implicated that prediction of UCS using UPV alone, although common in field application is not recommended. However, UPV measurement, in combination with the information of FA dosage, CF dosage and curing time, could be used to improve UCS prediction. The rank of variable significance for UCS is curing time > FA content > CF content, and for UPV is FA content > curing time > CF content; variable interaction is strongest for FA with CF for UCS development, and for FA with curing time for UPV evolution. Influence of FA on CTB strength development is due to improved polymerisation and consumption of Ca(OH)2. Influence of CF on strength development is a result of accelerated hydration and increased combined-water content in calcium silicate hydrate (CSH). Effect of curing time is attributed to the evolution of CSH product and pore-water content during cement hydration.

Effect of fiber on early strength and interface stiffness of cemented tailings backfill

This paper studies the early mechanical properties of fiber-reinforced cemented tailings backfill (CTB) and discuss its modification mechanism. The effects of fiber types and addition (polypropylene fiber, basalt fiber and glass fiber) on unconfined compressive strength of CTB were studied by unconfined compressive strength test (UCS). Scanning electron microscopy (SEM) was used to investigate the microstructure of fiber-reinforced CTB. Based on the theory of interface mechanics and the contact mechanism of fiber interface, the evolution mechanism of fiber-reinforced CTB interface characteristic stiffness was further explored. The results show that the fiber type and content have a significant effect on the strength of CTB, and the optimum addition of fibers is 0.4%. The strength of fiber-reinforced CTB samples increased first and then decreased with the increase of fiber content. The stress of CTB sample without fibers reaches the maximum value when the strain is 1.01%, while introduction of basalt fiber increases that value to 3.74%. In addition, the microstructure characteristics show that the hydration products around the fiber make the CTB sample have better compactness, and fibers can effectively inhibit the crack development of the CTB samples. Finally, using the theory of interface mechanics, it is found that the interface stiffness of CTB sample with basalt fibers is the largest, but the interface contact stiffness increases first and then decreases with the increase of fiber content, which is consistent with the law of macroscopic strength change.

A Particle Size Distribution Model for Tailings in Mine Backfill

With the increasing awareness of sustainable mining, the cement tailings backfill (CTB) method has been developed rapidly over the past decades. In the CTB technique, the two main mechanical properties engineers were concerned with are the rheological properties of CTB slurry and the resulting CTB strength after curing. Particle size distribution (PSD) of tailings material or PSD of the slurry is a significant factor that highly influences the rheological of CTB slurry and the strength performance of CTB. However, the concentrically partial size distribution curve and existing mathematical model could not represent the PSD of tailings material. In this study, a mathematical model for the particle size distribution of mine tailings was established using three model coefficients A B and K, which mainly reflect the characteristics of particles from three aspects respectively, the average size of particles, the proportion of the coarse or the fine parts of particles, and the distribution width of particles; meanwhile, an optimal coefficient solution method based on error analysis is given. Twelve tailing materials sourced from metal mines around China were used for the model establishment and validation. The determination coefficient of error analysis (R2) for all twelve modeled PSD lognormal curves was more significant than 0.99, and the modeled PSD lognormal curves are highly consistent with the determined particle size distribution curve.

Dynamic mechanical response and damage evolution of cemented tailings backfill with alkalized rice straw under SHPB cycle impact load

Dynamic disturbances such as blasting excavations cause damage to backfills. To ascertain and improve the dynamic mechanical response of backfill under frequent disturbance, single and cyclic impact load tests were conducted on cemented tailings backfill mixed (CTB)with different contents of alkalized rice straw (ARS) using a split Hopkinson pressure bar. The evolution laws of the dynamic mechanical properties and damage characteristics of CTB with the impact times and the ARS content were analyzed. The results showed that (1) The dynamic compressive strength (DCS) of CTB was improved by the ARS under single impact load with different strain rates. (2) Under the cyclic impact loads, the DCS, dynamic elastic modulus, and peak strain of CTB decreased with the increase in the cyclic impact times. Under the same impact times, the DCS of the backfill first increased and subsequently decreased with the increase in the ARS content, and 0.3% was the best content. (3) The unit volume absorbed energy of CTB was increased by the ARS and the longitudinal wave velocity (LWV) decay rate of CTB was decelerated under the cyclic impact loads. (4) The established damage evolution equation of CTB based on the LWV showed that its cumulative damage degree was increased by the cyclic impacts. Moreover, the incorporation of ARS was beneficial for decelerating and reducing the damage evolution rate and degree. The ARS was wrapped by hydration products in the CTB matrix, and its adhesion with the matrix promoted the ARS to play a bridging role, and inhibited and slowed down the development, propagation degree and propagation rate of cracks in CTB under cyclic impact. When the content of ARS was further increased, the probability of overlapping was significantly improved, which was not conducive to the adhesion between ARS and CTB matrix, resulting in the decline of the mechanical properties of CTB. The research results provide a reference for the understanding of the dynamic mechanical response of CTB with ARS under frequent blasting disturbances.