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2026 Vol. 0, No. 7
Published: 2026-07-10
1
Research on mechanical properties and microscopic mechanism of silicate-ferric aluminate-fly ash ternary composite cementitious system
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YANG Xiaochen, et al
This study investigates the effects of ferro aluminate cement (FAC) and fly ash (FA) on the physico-mechanical properties of ordinary Portland cement (OPC) -based materials. Macroscopic performance tests and microscopic analyses (XRD, SEM) revealed that incorporating FAC into OPC significantly shortens the setting time, enhances early-age strength, with a 24.8% increase in 7-day compressive strength at 10% FAC content, and effectively improves drying shrinkage resistance. The addition of FA further optimizes shrinkage performance, however, a FA content exceeding 30% leads to a reduction in strength. Microscopic mechanisms indicate that FAC promotes the formation of ettringite and accelerates OPC hydration, while FA consumes Ca(OH)2 through a pozzolanic reaction, increasing C-S-H gel formation. These actions enhance the compactness and durability of the composite system.
2026 Vol. 0 (7): 1- [
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5
Research on synergistic mineralization of fluorite tailings, yellow phosphorus sludge and phosphogypsum for preparation of early-strength low-heat silicate cement clinker
LI Wenjin, et al
Low-heat Portland cement clinker was prepared by using industrial raw materials such as limestone, red sand, clay and non-ferrous metal slag, with the conventional clinker moduli of KH = 0.80 ± 0.02, SM = 2.5 ± 0.1 and IM = 0.9 ± 0.1. Appropriate amounts of fluorite tailings, yellow phosphorus slag and phosphogypsum were also introduced. The effects of the compound mineralizer on the formation of Portland cement clinker minerals and their properties were revealed through chemical analysis, XRD, petrographic and physical performance tests. The results showed that the appropriate addition of mineralizers could improve the burnability of raw meals, reduce the f-CaO content in clinker, optimize the mineral composition of clinker, and change the size and structure of A and B minerals. These changes collectively led to an increase in the hydration reaction activity of cement, thereby enhancing the performance of cement. The 3-day compressive strength of cement increased by 20.5% to 17.6 MPa, and the 28-day compressive strength increased by 9.0% to 50.8 MPa.
2026 Vol. 0 (7): 5- [
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9
Research on preparation of ultra-sulfate cement using vanadium-containing steel slag as reducing slag
ZHANG Yu, et al
This paper uses the water-quenching or air-quenching RS to replace the GBFS to prepare supersulfate cement, and the effect of RS on the performance and hydration of supersulfate cement is researched. The results showed that water-quenching or air-quenching RS could effectively replace GBFS to prepare supersulfate cement. The clinker content of the prepared supersulfate cement was only 5%, but its mechanical performance can reach the level of 32.5 MPa grade common Portland cement. The supersulfate cement had the characteristics of lower water requirement of standard consistency, longer setting time, lower early mechanical performances but rapid growth rate of later stage mechanical performances. The hydration mechanism of RS-based supersulfate cement still followed the process of dissolution-depolymerization-sulfate excitation. Early hydration of the prepared supersulfate cement was more significantly affected by the cooling method of the RS, water-quenching RS could participate in the hydration reaction faster than that of air-quenching RS. Later hydration of the prepared supersulfate cement was closely related to the gypsum content, and the sufficient gypsum ensured the continuous hydration reaction
2026 Vol. 0 (7): 9- [
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14
Evaluation of uncertainty in carbon emissions in cement industry and benchmarking against EU carbon market
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ZHANG Jie, et al.
2026 Vol. 0 (7): 14- [
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56
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19
Performance testing method and case studies for NOx removal equipment in cement kiln
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ZHOU Xiaodong, et al
2026 Vol. 0 (7): 19- [
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56
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23
Application of full-process environmental protection and ultra-low emission transformation in cement enterprises
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YIN Gang, et al
2026 Vol. 0 (7): 23- [
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46
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27
Final stage of aggregate transportation includes implementation of a water washing process to enhance product quality
YANG Xin, et al
2026 Vol. 0 (7): 27- [
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46
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29
Study on mining technology practice of xiaoshangyu open-pit limestone mine
WANG Jingshi, et al
2026 Vol. 0 (7): 29- [
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39
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32
Research on online detection system for surface morphology of vertical grinding roll sleeve using multi-sensor fusion
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YU Ximing, et al.
2026 Vol. 0 (7): 32- [
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54
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38
Online identification of MPC technology in temperature control of coal grinding process
WANG Songhua
2026 Vol. 0 (7): 38- [
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45
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43
Determination of sulfur trioxide content in coal gangue by barium sulfate gravimetric method
SU Xijin, et al.
2026 Vol. 0 (7): 43- [
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42
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45
Influence of ultrafine circulating fluidized bed fly ash on fluidity, compressive strength and hydration of cement-based materials
ZHANG Haijiao, et al
Circulating Fluidized Bed Fly Ash (CFBFA) is characterized by huge stockpiles and low utilization rate. To enhance its resource utilization efficiency, this study adopts an ultra-fining method to improve its performance as an admixture. The effects of ultrafine CFBFA on the properties of cement-based materials are analyzed through tests on fluidity, setting time, rheological properties, hydration heat, compressive strength, and chemically bound water. The experimental results indicate that when the content of ultrafine CFBFA is 20%, the fluidity of cement-based materials is improved, and the compressive strength is increased by 15.84%, demonstrating a significant effect. This is because ultrafine CFBFA exhibits multiple effects in cement-based materials. On one hand, it has pozzolanic activity, which is conducive to enhancing the degree of hydration in the later stages. On the other hand, it has a nucleation effect, and despite the reduced cement dosage, its pore-filling capability improves compactness. Therefore, ultra-fining represents an effective pathway for the application of CFBFA
2026 Vol. 0 (7): 45- [
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42
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49
Research and application of spodumene slag powder in concrete
GUO Cuifen, et al.
2026 Vol. 0 (7): 49- [
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53
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53
Influence of epoxy resin-amine dual microcapsules on durability of self-healing cement mortar specimens
MA Wenxu, et al
2026 Vol. 0 (7): 53- [
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37
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57
Research on optimization of C50 box girder concrete performance by adjusting filling density of cementitious materials
GAO Tao, et al.
2026 Vol. 0 (7): 57- [
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44
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61
Influence law of carbide slag with different dosages on early compressive strength of cement
QIN Quanlu, et al.
2026 Vol. 0 (7): 61- [
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46
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64
Research on driving factors for construction waste resource utilization application in road engineering based on DEMATEL
GAO Fengsheng
2026 Vol. 0 (7): 64- [
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46
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68
Research on preparation and application of TiO2 photocatalytic high-light polyurethane concrete road surface
LI Weixing, et al.
2026 Vol. 0 (7): 68- [
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40
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72
Research and application of C50 fast-hardening and fast-setting concrete for base sliding plate in frame bridge jacking technology
WANG Haibo, et al.
2026 Vol. 0 (7): 72- [
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42
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75
Application of lightweight pile-slab concrete retaining wall in treatment of bedding landslide of highway cutting slope
YU Jian, et al.
2026 Vol. 0 (7): 75- [
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42
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78
Formula design and performance regulation of freeze-thaw resistant concrete materials for road and bridge engineering under extreme climate
YANG Quanshun
2026 Vol. 0 (7): 78- [
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35
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81
Energy-saving optimization design of prefabricated building concrete components driven by ultra-low energy consumption target
XI Haobo
2026 Vol. 0 (7): 81- [
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42
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84
Application of non-destructive testing technology for concrete structure quality in water conservancy projects
WANG Haipeng
2026 Vol. 0 (7): 84- [
Abstract
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29
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87
Study on mix proportion design of low-carbon green high-performance concrete based on new admixture system
SU Weichong
2026 Vol. 0 (7): 87- [
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38
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90
Study on causes and prevention and control technology of concrete pavement cracks in rural highways
LI Yunxiang/
2026 Vol. 0 (7): 90- [
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35
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93
Study on influence of roller mill installation error on cement fineness and concrete construction performance
YANG Yunwen
2026 Vol. 0 (7): 93- [
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41
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96
Experimental study on freeze-thaw damage of high ductility concrete by ultrasonic flat measurement method
YANG Yi, et al
2026 Vol. 0 (7): 96- [
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46
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99
Mechanical performance and application analysis of composite materials in reinforcement of existing steel-concrete structures
MENG Xuefeng
2026 Vol. 0 (7): 99- [
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39
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102
Experimental study on durability of construction waste recycled aggregate concrete in cushion of road and bridge engineering
CAO Wenhua
2026 Vol. 0 (7): 102- [
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36
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105
Influence mechanism of roller press pre-grinding on properties of cement and concrete
HAN Lei
2026 Vol. 0 (7): 105- [
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57
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108
Optimization study on key technologies of temperature control and crack prevention of mass concrete in water conservancy projects
YANG Xing, et al.
2026 Vol. 0 (7): 108- [
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62
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111
Study on hydration heat effect and temperature control measures of mass concrete in underground structures
LUO Rulong
2026 Vol. 0 (7): 111- [
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39
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114
Research on overpressure prevention interlock technology for powder storage system of concrete mixing station
XU Yang, et al
2026 Vol. 0 (7): 114- [
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46
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117
Study on key technologies of cold-mix cold-lay singlecomponent polyether polyurethane concrete bridge deck pavement and prediction of traffic opening timing
YU Zhenbing, et al
2026 Vol. 0 (7): 117- [
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48
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121
Engineering application technology of recycled aggregate concrete in green buildings
ZHANG Han
2026 Vol. 0 (7): 121- [
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52
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124
Analysis on key points of supervision and control of concrete pouring quality in high-rise residential projects
ZHANG Tianwu
2026 Vol. 0 (7): 124- [
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43
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127
Key technologies for detailed production and construction of precast fair-faced concrete grandstand slabs
XIE Lanshuang, et al.
2026 Vol. 0 (7): 127- [
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36
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130
Influence analysis of water supply pipeline laying on safety of surrounding concrete structures
WANG Yuhai, et al
2026 Vol. 0 (7): 130- [
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39
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133
Study on joint treatment and grouting performance of connections in prefabricated structure construction
WANG Xueshan, et al.
2026 Vol. 0 (7): 133- [
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45
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136
Application of cement concrete pavement modification technology in heavy-load traffic highways
ZHANG Dongmou, et al.
2026 Vol. 0 (7): 136- [
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43
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138
Study on construction performance and diffusion effect of cement-based grouting materials in foundation reinforcement of airport expansion projects
MA Chaoran
2026 Vol. 0 (7): 138- [
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34
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141
Application of nano steel fiber shotcrete in support of large tunnels with basalt columnar joints
LI Zhihua
2026 Vol. 0 (7): 141- [
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29
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144
Study on construction difficulties and comprehensive concrete control technology of high-rise building projects
LI Juan, et al.
2026 Vol. 0 (7): 144- [
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37
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147
Analysis of mass concrete construction technology based on characteristics of water conservancy and hydropower projects
FENG Kai, et al.
2026 Vol. 0 (7): 147- [
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48
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150
Analysis of hydration heat temperature control and crack evolution of ultra-thick mass concrete base slab in high-rise buildings
YANG Xiaoou
2026 Vol. 0 (7): 150- [
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49
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