Polymer Mortar Research Articles

Eco-friendly and cost-effective epoxy binder for polymer mortar utilizing oregano oil-based hardener

Polymer mortar, consisting of a polymer binder and aggregates, offers superior properties such as enhanced strength, durability, and corrosion resistance compared to the traditional cement-based mortars. Within the polymer-based mortar, epoxy resin is one of the most commonly used resins owing to its high performance. However, its widespread adoption is hindered by costs and environmental concerns, particularly the dependence of bisphenol A-containing epoxide, a substance harmful to human health. In this work, a novel epoxy hardener derived from oregano oil (OEO) was developed to create a more eco-friendly and cost-effective binder for polymer mortar. The inclusion of OEO-based hardeners reduced the viscosity of the binder and accelerated the curing process. The Mannich base structure of the hardener induced more reactive sites in the epoxy system, resulting in a denser crosslinked network. Polymer mortars fabricated with this novel hardener exhibited improved mechanical properties, bonding strength, and corrosion resistance compared to conventional epoxy mortars. Scanning electron microscopy images also revealed a stronger interfacial bond between the epoxy resin and the aggregates. This study demonstrates the potential of OEO-based hardeners to enhance the performance of epoxy binders, providing a sustainable alternative for polymer-based mortar applications.

Repair overlays of modified polymer mortar containing glass powder and composite fibers-reinforced slag: mechanical properties, energy absorption, and adhesion to substrate concrete

This article aims to investigate the mechanical properties and substrate adhesion of the pull-off method in polymer mortars modified with styrene-butadiene resin polymer (SBR) containing glass powder and composite fiber-reinforced slag. Different mix designs were investigated with and without SBR, taking into account different amounts of glass powder and slag separately and in combination, along with the effect of glass, polypropylene, and steel fibers alone and in combination. The flexural performance and energy absorption of beams retrieved with these layers were also assessed. The results revealed significant differences and increases in the substrate adhesion of the restored modified polymer layers containing SBR compared to the polymer-free repair overlays. Furthermore, an improvement was observed in the adhesion performance of the repair overlay using a combination of slag and glass powder and the glass and polypropylene fiber composite. The highest adhesion was related to the modified polymer mortar design containing composite fibers of glass, polypropylene, and steel with 25% replacement of SBR polymer for 10% glass powder, 10% slag, and 5% slag with 5% glass powder. The adhesion was increased by about 3.74, 3.72, and 3.78 times compared to the repair overlay of the control design. Modified polymer mortars had a higher T150D toughness. Moreover, the energy absorption was significantly improved by the presence of SBR polymer. The highest toughness values were found in the beams restored with modified polymer mortars containing polypropylene, glass, and steel composite fibers with an increase of 48.51%–66.42% compared to the samples without polymer as a result of the pozzolans used in this mix.

Evaluation of Chemical Resistance of Polymer Mortars Containing Biochar

Partial replacement of quartz flour microfiller in polymer composites with biocarbon is one of the potential ways to utilize this waste. The article discusses the possibility of using biocarbon as a component of vinyl ester mortars, in the context of their chemical resistance. The tests were carried out for mortars with different quantitative compositions, and therefore with different biocarbon contents. They were subjected to 12-month exposure to a chemically aggressive environment. Solutions of 0.5% sulfuric acid(VI) and 5% sodium hydroxide were used. Measures of resistance were changes in weight, compressive strength, longitudinal ultrasonic wave velocities and quantitative changes in microstructure compared to chemically unstressed samples. The results show that vinyl ester mortars with biocarbon are more resistant to chemical aggression with sulfuric(VI) acid solution. A significant decrease in compressive strength, ultrasonic wave velocity and an increase in the values of stereological parameters were observed after exposure of the composites in sodium base solution. This is in contrast to the chemical aggression in the acid solution, after which the changes in the properties and microstructural parameters of the mortars were not so clear

Effect of calcium sulfate whiskers on mechanical properties and enhancement mechanism of metakaolin-based polymer mortar

Effect of calcium sulfate whiskers on mechanical properties and enhancement mechanism of metakaolin-based polymer mortar

Nano-SiO2/polyurethane modified unsaturated polyester resin mortar for thin layer repairing on airport pavement

This paper introduces a novel toughened polymer mortar designed for runway repair, featuring outstanding impact resistance, high strength, and cost-effectiveness. To augment the toughness of unsaturated polyester (UP) polymer mortar, nano-SiO2 and polyurethane (PU) were incorporated. Firstly, the optimal dosages of nano-SiO2 and PU were determined through tensile test and impact test. Then, the modification mechanism of nano-SiO2/PU on UP resin was explored by microscopic image technology. In addition, the compression, flexural, fluidity, flexural bond strength and construction time tests were carried out to determine the optimal formula of nano-SiO2/PU modified UP resin mortar. Finally, the durability, impact resistance, impermeability resistance, skid resistance, and interlayer bond strength of modified UP resin mortar were studied and compared with those of pure UP resin mortar and epoxy (EP) resin mortar. Results show that the optimum proportion by mass for nano-SiO2/polyurethane modified UP resin is, UP resin: PU: dibutyltin dilaurate: nano-SiO2: initiator: accelerator: diluent: plasticizer = 1: 0.1: 0.002: 0.01: 0.01: 0.01:0.15:0.01. Furthermore, the mass proportion of modified UP resin to aggregate is 1: 1.2. In nano-SiO2/PU modification of UP resin, the -NCO groups of PU have been involved in chemical interaction with the -OH group of UP, while nano-SiO2 and UP resin are blended physically only. Compared with pure UP resin mortar, the nano-SiO2/PU modified UP resin mortar exhibited a 44% reduction in shrinkage rate, approximately 20% less corrosion loss, a 32% decrease in freeze-thaw loss, a 37% improvement in impact resistance, and increased shear bonding strength, flexural bonding strength, and tensile bonding strength by 44%, 33%, and 47%, respectively. Although the modified UP resin mortar demonstrated slightly lower performance in terms of dry shrinkage, corrosion resistance, skid resistance, and tensile bond strength compared to EP resin mortar, its freeze-thaw durability, impact resistance, flexural bond strength, and shear bond strength surpassed those of EP resin mortar. All three materials exhibited excellent impermeability. Leveraging the advantages of PU and nano-SiO2, the modified UP resin presents a promising repair material for airport pavement with enhanced toughness, high stability, and reduced cost.

Comparative study of light-emitting cement and polymer mortars for sustainable building applications: performance evaluation and analysis

Comparative study of light-emitting cement and polymer mortars for sustainable building applications: performance evaluation and analysis

Experimental study on RC beams shear‐strengthened with composite polymer mortar and steel strands wire mesh

AbstractThis paper presents an experimental investigation of the use of composite polymer mortar (CPM) and steel strands wire mesh (SSWM) to strengthen reinforced concrete (RC) beams in shear. In order to maximize the shear resistance of the steel strands, a new type of anchor device called wedge‐shaped steel plate hoops (WSSPHs) was developed. And the study aimed to examine the effect of shear‐to‐span ratio and prestressing level on the mechanical properties of the beams. A total of nine beams were constructed and tested under four‐point bending monotonic load, comprising three control beams and six strengthened beams. The study analyzed the damage modes, load‐deflection curves, strength, stiffness, and ductility of the beams. The test results indicated that (1) the mechanical properties of the strengthened beams were improved, with the shear capacity improving by 38.47%–71.37% after strengthening. (2) It was observed that SSWM could be utilized more effectively in high shear‐to‐span ratio beams among the strengthened beams with the same prestressing level. (3) Additionally, the larger prestressing level was found to change the design damage mode of the test beams, with RB‐2.5‐0.5 failing in bending. Finally, a model was proposed to predict the shear capacity of the test beams based on the specification GB 50011‐2010. The model considered the effect of the initial prestressing of the steel strands.

Preparation and performance of acrylic mortar repair material modified suitably by nano-fiber and nano-particle in low-temperature for high-strength gain applications in construction

Nano-particles and nano-fibers have a marked effect on the physico-mechanical properties of polymeric mortar. In this study, to further enhance the mechanical properties of acrylic repair materials used in extreme environments (−25 °C or even lower), we added nano-particles (SiC, Al2O3, B4C, Si3N4, Fe2O3, SiO2), nano-fibers (CFs, MW-CNTs), nano-sheets (GNP, MOS2) and one homemade three-dimensional (3D) nano-fibers SiC–OH@APTES-g-CFs-COOH, respectively, to the polymeric mortar. We investigated how the dimensionality, content and type affect the compressive strength and flexural strength of the acrylic mortar repair materials. Acrylic mortar specimens were prepared by mixing methyl methacrylate binder, aggregates, initiator, accelerator and different nano-particles in a standard cement mixer, which is placed in standard molds of 40mm × 40mm × 160 mm and kept in −25 °C. Compressive and flexural strength of the acrylic mortar repair materials were determined at 1h, 1d and 10d of curing. The carbon fibers were treated with γ-aminopropyltriethoxysilane (APTES), and the 3D nano-fibers SiC–OH@APTES-g-CFs-COOH were prepared. The Scanning electron microscopy (SEM) analysis indicated that a large number of SiC were uniformly and densely distributed on the surface of CFs. The mechanical strength results showed that almost all contents of nano-materials of any dimension used in this article could enhance the mechanical strength of the specimens. Notably, when 0.05 wt% SiC–OH@APTES-g-CFs-COOH was added, the compressive strength and flexural strength values of acrylic mortar specimens at 10d were improved by 41.16 % and 52.28 % than those of control specimens. The incorporation of 3D nano-fibers formed a mechanical engagement with the aggregates, which increased the contact area between the aggregates and 3D nano-fibers and the thickness of the contact layer inside the specimen, thus effectively transferring the stress when the specimen was subjected to the load, and enhance the interfacial properties between the substrate and the nanofillers. Among the explored nano-particles, the addition of Si3N4 could significantly improve the compressive and flexural strength of acrylic mortar. Compared with the control specimen, the compressive strength can be improved by 44.6 % and the flexural strength of acrylic mortar specimens can be improved by 76.2 % when the addition of Si3N4 was 0.3 % by weight. This article demonstrated the availability of nano-powders for improving the mechanical properties of polymeric mortar construction materials.

ASSESSMENT OF THE AGGREGATES IMPACT ON THE PROPERTIES OF RECOVERY POLYMER MORTARS

The peculiarities of polymer mortar application for renovation and restoration are determined on the basis of priority data integration about the destruction mode of valuable historical buildings. The possibilities of controlling technological, physical-mechanical, and operational properties of recovery polymer mortar due to the aggregates of different nature are shown. For the analysis and optimisation, the quantitative relations between the structure and property factors of recovery polymer mortars and the factors of recipes and technology determining them were obtained in the form of experimental and statistical models calculated using the COMPEX system. The optimisation methods of recipe and technological solutions based on the use of experimental and statistical models are proposed. The optimisation of polymer mortar composition according to the package of quality indexes and property stability at high temperature has been carried out. The package of "mixture-technology-properties" models has been obtained, with the help of which the change mechanisms of direct and summarizing indexes of mixture technological properties and mechanical properties of recovery polymer mortars have been established when changing the type of aggregates (ceramics, quartz, carbonates, their binary and triple mixtures). The influence of aggregates on the durability change of polymer mortar under the influence of various temperature-climatic and operational factors (UV-irradiation, alternate action of temperature and aggressive aqueous solutions) has been studied. It is recommended to use quantity and type optimal aggregates to provide the complex of technological and operational properties of polymer mortar and to reduce the consumption of imported polymer. The rational compositions of polymer mortar with increased stability of properties under changing temperature and climatic conditions are proposed for different restoration technologies. The series of nomograms have been developed for the initial selection of the "area" of rational polymer mortar compositions, providing for further correction in relation to a specific repairable object. Technological and marketing analysis according to the research results are carried out.

Experimental study on seismic behavior of masonry walls retrofitted with steel-member and high-performance polymer mortar

In this paper, an innovative retrofitting method using steel-member and high-performance polymer mortar was purposed for masonry walls. In order to study the effectiveness of the proposed retrofitting method, three specimens of concrete tie-column confined masonry wall were designed and manufactured. The quasi-static tests were conducted in two stages: before and after retrofitting. Damage progression, hysteretic behavior, stiffness degradation, and energy dissipation were compared and analyzed. The results show that after retrofitting with the proposed method, bearing capacity of damaged walls is increased by 17.66%–42.37%. The initial stiffness can be restored to 85% of the original wall. The energy dissipation capacity is increased by 270.20%–330.55%. The proposed method can effectively improve the seismic behavior of damaged masonry walls. Finally, evaluation methods of bearing capacity for masonry walls before and after retrofitting were given, the calculated results were in reasonably good agreement with test results.

Effect of Fly Ash on Mechanical Properties of Polymer Resin Grout.

High-strength grout is specified to increase the bond between grout and bar in grouted connections and to ensure that the forces in the bars can be transferred to the surrounding material accordingly. Although polymer grout is fast setting and rapid in strength development, the use of polymer mortar in grouted connections is still limited because of the lack of information and familiarity practitioners have regarding the product. The goal of this work is to investigate the mechanical characteristics and performance of polyester grout containing fly ash that can be used as an infill material for grouted connections. This study focused on the composition of polymer grout, which typically consists of a binder, hardener, and filler. In this particular case, the binder was made of unsaturated polyester resin and hardener, while the filler was fine sand. The aim of the research was to investigate the potential benefits of incorporating fly ash as an additional filler in polymer resin grout and examine the mechanical properties of polymer resin grout. To this end, varying amounts of fly ash were added to the mix, ranging from 0% to 32% of the total filler by volume, with a fixed polymer content of 40%. The performance of the resulting grout was evaluated through flowability, compression, and splitting tensile tests. The results of the experiments showed that, at a fly ash volume of 28%, the combination of fine sand and fly ash led to an improvement in grout strength; specifically, at this volume of fly ash, the compressive and tensile strengths increased by 24.7% and 124%, respectively, compared to the control mix. However, beyond a fly ash volume of 28%, the mechanical properties of the grout started to deteriorate. Due its superior properties in terms of compressive and flexural strengths over all examined mixes, the PRG-40-28 mix is ideal for use in the infill material for mechanical connections.

Research on the durability of fibre impermeable composite modified anti-corrosion mortar under an acidic environment

Concrete corrosion is a prominent problem in sewage environments, and there is a huge demand for engineering repairs. This paper presents a “composite” protection concept, developing a new type of anti-corrosion mortar by adding a variety of high-performance materials such as basalt fibres, polypropylene fibres, mineral admixtures and impermeable agents. In this paper, the acid environment corrosion test was carried out for the new anti-corrosion mortar, and the change rules of water absorption, mass loss rate and compressive strength were obtained. We studied the deterioration mechanism of mortar in different corrosion cycles. We revealed the corrosion mechanism and degradation law of mortar in an acidic environment by combining the test block's apparent morphology and microstructure characteristics after corrosion. The results show that the new anti-corrosion mortar has a dense internal structure, fewer holes, and relatively light corrosion. Compared with ordinary polymer mortar, the water absorption rate of the new anti-corrosion mortar is reduced by 60%, the initial strength is increased by 62%, the strength retention rate is increased by more than 25%, and the corrosion resistance is excellent. The new anti-corrosion mortar has a significant increase in strength and corrosion resistance compared to the polymeric anti-corrosion mortars that are more commonly used in engineering, providing a new technical idea for the protection and repair of wastewater projects.

Time Dependence of Viscosity of Alkali-Activated Fly Ash Based Geopolymer Mortar

FA was used as the raw material, and the net slurry of FA base Geopolymer was set as the control group to study the influence of sand content, gradation, reaction temperature and time on the time dependence of the viscosity of alkali-activated fly ash based geopolymer mortar. The experimental results show that the curing reaction of alkali-activated fly ash based geopolymer mortar was affected by the temperature dependence of fluid viscosity and the activation energy of the chemical reaction, which is relatively complex. This paper will divide the whole polymerization process into three stages to elaborate. The increase of sand cement ratio will increase the viscosity of FA base polymer mortar. If the sand is too coarse or too fine, the viscosity of FA base polymer mortar will increase significantly, and the fine sand has a greater impact on the viscosity of FA base polymer mortar than the coarse sand. Increasing temperature will significantly accelerate the reaction speed and increase the influence of chemical reaction activation energy on the viscosity of the system while the too high temperature will make the viscosity of the system decrease more significantly in the reaction. This study will reveal the intrinsic relationship between the viscosity of geopolymer and the reaction process, the reaction mechanism of the curing process so that the reaction stage can be represented by the viscosity state of the slurry.

Pengaruh Binder Akrilik terhadap Sifat Fisik dan Mekanik Mortar Polimer

Initial damage to the structure occurs in the outer layers of the affected surface exposure to the peat environment and the static and dynamic movement of the structure. To prevent structural damage, the latest technological innovations are needed in the use of mortar constituent materials to increase the strength of the mortar. Polymer mortar is a composite material formed from a mixture of fine aggregates, cement, water and polymer binders or binders with a certain level. The purpose of this study is to determine the effect of the use of acrylic binders on the physical and mechanical properties of polymer mortars and the influence of peat water on the future of the mortar. The substitution of acrylic binders with water consists of 3 substitutions, namely 20%, 30% and 40% and 0% as controls. The results of the search for acrylic binders on the mortar mixture obtained a minimum physical property value at 30% acrylic use in the 28-day test, namely. The porosity value of the mortar is 9.80%, the waterabsorption value of the mortar is 4.67% and 4.72%, and the sorptivity value of the mortar is 0.70. From the value of physical properties obtained the degree of tightness of the polymer mortar well with the use of acrylic binders in the mixture. For the mechanical properties of polymer mortar, compressive strength testing is carried out with optimum compressive strength at the use of 30% acrylic. The value of the compressive strength of the mortar is 33 Mpa.

The performance of novel polymer mortar containing vinyl ester resin reinforced by fly ash and iron sand under compressive, tensile, dan flexural test

Polymer concrete is a type of advanced concrete widely used globally in the last few decades. It is suitable for a variety of applications such as in pipes, roadway pavements, and bridge decks. Concrete can also be used sustainably to mitigate CO2 emissions due to the partial or total replacement of cement normally used as a binder with polymer. Several studies have explored polymer concrete materials and their applications but only a very few references were made to the mechanical properties and utilization of polymer mortar. One of the polymers most widely used is vinyl ester due to some advantages such as excellent corrosion and chemical resistance. Therefore, this study focused on examining the materials and compositions used in vinyl ester polymer mortar mixtures as well as their compressive, tensile, and flexural strength. The process involved conducting a preliminary test to assess the materials used in order to have an optimal composition. This was followed by the combination of the vinyl ester (VE) and its catalyst hardeners, mepoxe (ME) and cobalt (CO), fly ash (FA), and Lumajang iron sand (LIS) to determine compression strength, density, and cost with due consideration for the workability. Moreover, tensile and three-point bending tests were also applied to the materials. The results showed that the optimal content for the VE:ME:CO:FA:LIS was 42,2:2,9:0,63:18,1:36 with a compressive, tensile, and bending strengths of 92.64 MPa, 12.19 MPa, and 106.18 MPa, respectively. It was concluded that the novel polymer mortar has excellent mechanical properties and can be further implemented into structural elements such as pipes, beam-columns, slabs, walls, and others.

Experimental Study of Fiber Pull-Outs in a Polymer Mortar Matrix.

In order to study the influence of vinyl acetate-ethylene copolymerization emulsions on the bonding performance of fiber and mortar, mortar materials with different polymer contents were prepared. The optimal mix ratio of the matrix was obtained using a pull-out test with a 0° inclination angle. On this basis, polypropylene fibers and alkali-resistant glass fibers were set at different burial depths (6 mm, 12 mm, and 18 mm) and different burial angles (0°, 30°, 45°, and 60°). The load-displacement curves of two types of fibers pulled out from the polymer mortar were obtained. The test results show that polymer contents of 3% and 5% increase the peak pull-out loads of glass fibers and polypropylene fibers by 16.28% and 30.72% and 7.41% and 27.11%, respectively. When the polymer content is 7%, the peak pull-out load decreases by 1.31% and 24.26%, especially for polypropylene fiber, which significantly weakens the bonding performance between the matrix and the fiber. The pull-out load of glass fibers and polypropylene fibers increases with the increase in the buried depth, and both show tensile failure at 18 mm. As the embedding angle increases, the pull-out load of polypropylene fibers decreases continuously, while the glass fiber shows a higher pull-out load at 30°.

Performance evaluation of bond strength and fiber type on the mechanical properties of polyurethane-based polymer mortar

Polyurethane (PU)-based Mortar (PUM) has a short curing time and high bonding ability as a new potential repair material. However, its low strength significantly limits its application in maintaining civil engineering structures. In this paper, the effect of micro steel fiber (MSF) with different aspect ratio and different dosages on the compressive strength, flexural strength, and elastic modulus of PUM was investigated. The performance of fiber at different embedment depths on the interfacial bond properties between the PU-based mortar mixture and steel fiber was explored through the fiber pull-out test. Additionally, steel fiber’s reinforcing and toughening effects were analyzed, and scanning electron microscopy (SEM) was used to analyze the microstructure of PU-based mortar reinforced with steel fiber. The results showed that the mechanical performance of PUM incorporated with two fiber types up to 3% was significantly improved. The bond strength between the micro steel fiber and PUM mixture improved with the increase in fiber volume fraction in the PU mixture. Similarly, the pull-out load and the pull-out work are increased with the increase in depth, while the interface bond strength is decreased. Additionally, based on the result obtained, the reinforcing effect of MSF in PUM can effectively refine the pores and bridge the crack formation.

Comparative study on the performance of photochromic cement, epoxy, and polyester mortars

The utilization of photochromic cement and photochromic polymeric (epoxy and polyester) mortars in building applications is explored in this study. In order to achieve the objective, photochromic cement, epoxy, and polyester mortars were fabricated, and their performances were comparatively evaluated. The physical and mechanical properties, including water absorption, compressive strength, and ultrasonic pulse velocity, as well as the phase and microstructural characteristics of the mortars, were evaluated using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and energy dispersive X-ray (EDX) analysis after a curing period of 28 days. The study also evaluated the photochromic (color coordinates) and optical responses (absorbance values) of cement and polymeric samples exposed to control and urban-industrial environments for 28 and 180 days, respectively. The results demonstrated that polymeric photochromic mortars (epoxy and polyester) exhibited higher compressive strength and ultrasonic pulse velocity values compared to photochromic cement mortars. Additionally, the findings showed that polymeric photochromic mortars (epoxy and polyester) had greater absorbance values and maintained their photochromic response over time compared to photochromic cement mortars.

Assessment of Dynamic Surface Leaching of Monolithic Polymer Mortars Comprised of Wastes

Today, the reuse of waste in building materials occupies an important place in the approach to the circularity of materials. National and European environmental regulations require ensuring the environmental safety of material-incorporating waste. For this, there are specific tests to verify that there is no health risk when using these materials. Concretely, to check the environmental acceptability of construction materials, including wastes, the release of hazardous substances into water must be assessed. In this research, we performed a diffusion test with the sequential renewal of water during a 64-day period according to the NF EN 15863 specifications on polymer mortar monoliths, common construction products used in floor-covering applications and incorporating sediments. Polymer mortars were prepared at a laboratory scale by incorporating 30 or 50% of polluted sediment for various polymer concentrations (12, 14, 16, 18, 20 and 25%). It was shown that the release of inorganic substances is limited in these hydrodynamic conditions. Among trace elements, As, Cd, Cr, Ni, Pb and Zn are lower than quantification limits in most leachates, whereas Ba, Co, Cu and V are systematically quantified at low concentration levels. This is particularly true for samples displaying the highest polymer concentration (25%) and the lowest sediment incorporation rate (30%). This is because of the low water absorption level and low porosity of polymer mortar matrices. No adverse effect is to be expected for environmental health from the leachates of these construction materials, including waterways sediments, because all the measured parameters were below the Soil Quality Decree limits applied in the Netherlands for environmental assessment of construction products.

Study on the corrosion resistance of composite modified anti-corrosion mortar under the action of bio-organic water

The concrete structure will be seriously eroded in a sewage environment, causing substantial economic losses. Therefore, it is of great significance to repair the existing corrosion structure. In order to quickly restore the mechanical properties and enhance the durability performance of eroded concrete structures, this paper develops a new composite high-durability mortar by adding polypropylene fibers, basalt fibers and impermeable agents, which can achieve the dual requirements of structural repair and protection. For the new material, this test set up a total of five groups of mixing ratios. This test analyzed the water absorption, mass loss rate, compressive strength and other performance indicators of the test block in the corrosive environment, and scanned and studied the microstructure of each mortar test block after corrosion. It was found that the new anti-corrosion mortar has relatively less crystallization, dense internal structure, and significantly lighter erosion. From the mechanical properties, the strength of ordinary polymer mortar after erosion decreased by 6%; high-durability mortar instead improved the strength by nearly 20%, showing better resistance to erosion. Taken together, the use of mineral dopants and water repellents can effectively enhance the strength and corrosion resistance of mortar, and the cost is low, with good prospects for engineering applications.