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2026 Vol. 0, No. 3
Published: 2026-03-10
1
Influence of structure of boron-barium composite calcium sulfoaluminate minerals on radiation shielding performance
YANG Zicheng, et al
Currently, radiation-shielding cement used in nuclear power plants primarily includes boron-containing cement, barium cement, and strontium cement. Conventional boron-containing cement is typically produced by incorporating boron oxides or minerals followed by grinding, but it often suffers from high density, susceptibility to segregation and cracking, and unstable performance. Barium and strontium cements require sintering temperatures exceeding 1 550 ℃, resulting in high energy consumption, and they only shield γ-ray and X-rays without effectively moderating or absorbing neutrons, thus offering limited protection. This study introduces both boron, which provides neutron shielding, and barium, which shields γ/X-rays, into calcium sulfoaluminate minerals. The influence of boron and barium on the mineral structure of calcium sulfoaluminate was investigated, along with the mechanical and radiation shielding properties. The results show that with the addition of 0.75 B2O3 and 0.8 BaO, a boron-barium composite calcium sulfoaluminate sample sintered at 1 350℃ achieved a 7-day compressive strength of 59.56 MPa and a flexural strength of 9.57 MPa in mortar specimens. The shielding capabilities against γ-rays and neutrons were improved by 40.00% and 33.33%, respectively, compared to pure calcium sulfoaluminate.
2026 Vol. 0 (3): 1- [
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7
Research on effect of polycarboxylate superplasticizer on early strength of crystal nucleation accelerator
WANG Qingwen, et al
Polycarboxylate superplasticizer (PCE) is the most widely used admixture in concrete. To enable the engineering application of crystal nucleation accelerators in concrete, it is essential to investigate their compounding effects with PCE. Based on this, five commercially available PCEs were compounded with a crystal nucleation accelerator to analyze their effects on concrete performance and clarify the influencing mechanisms. The results indicate that the addition of the crystal nucleation accelerator improved concrete slump, significantly shortened the setting time, and enhanced the early-age compressive strength. Notably, the more prolonged the setting time induced by the PCE, the more pronounced the enhancement effect of the crystal nucleation accelerator on early compressive strength—particularly within 12 hours (0.5 d). However, as the curing age extended, the enhancement effect of the crystal nucleation accelerator on compressive strength gradually weakened for all PCE-compounded systems, though it remained consistent across different PCE types. Critically, no strength regression was observed in any mixture
2026 Vol. 0 (3): 7- [
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124
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11
Analysis of microstructure and hydration characteristics of cement clinker after roller pressing
WEN Youqiang
2026 Vol. 0 (3): 11- [
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134
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14
Numerical simulation study on combustion characteristics of cement decomposition furnace with hydrogen fuel thermal substitution rate
Hot!
QU Qiqi, et al
2026 Vol. 0 (3): 14- [
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110
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18
Current research progress of carbon dioxide capture technology in cement production process
GAO Xiangyu, et al
2026 Vol. 0 (3): 18- [
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127
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22
Application practice of thermal analysis in medium temperature and medium dust SCR denitrification system of cement clinker production line
Hot!
CHENG Zhisheng, et al.
2026 Vol. 0 (3): 22- [
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83
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25
Integrated design of high-temperature and low-dust SCR for tail-end flue gas of sixth-stage preheater kiln and waste heat utilization
Hot!
ZHANG Fubin, et al.
2026 Vol. 0 (3): 25- [
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120
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28
Research on atmospheric pollution emission characteristics of independent heat source slag powder production
WANG Xinchun, et al
2026 Vol. 0 (3): 28- [
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100
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32
Development and application verification of online monitoring method for cement clinker output
Hot!
DENG Xikun, et al
2026 Vol. 0 (3): 32- [
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129
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36
Production of ultrafine composite powder and its application in concrete
ZHAO Wukui
2026 Vol. 0 (3): 36- [
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108
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40
Control situation and suggestions for chlorine, sulfur and alkali content in raw materials after adding materials containing harmful components
QI Xianxiang, et al
2026 Vol. 0 (3): 40- [
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103
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43
Analysis and handling of high pressure alarm for bed pressure ETA grate cooler
LI Wenming
2026 Vol. 0 (3): 43- [
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119
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45
Numerical simulation study on influence of grid structure on ventilation performance of grid plates
TIAN Kun, et al
2026 Vol. 0 (3): 45- [
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123
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48
Optimization plan for vibration control measures of constant flow chamber of rolling press
ZHANG Yun, et al
2026 Vol. 0 (3): 48- [
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90
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51
Optimization design for anti-adhesion of circulating fans in raw material grinding process
DENG Jiangang, et al
2026 Vol. 0 (3): 51- [
Abstract
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109
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54
Design and application of automatic unpacking and loading system for bagged materials
WANG Yanfei, et al
2026 Vol. 0 (3): 54- [
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77
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57
On-site layout method for arm-operated automatic bag-insertion production line for cement packaging#br#
WANG Yang, et al
2026 Vol. 0 (3): 57- [
Abstract
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107
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60
Application practice of transforming “one card system” of cement enterprises into “one code system”
WANG Tianpeng, et al
2026 Vol. 0 (3): 60- [
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89
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63
Development and application of a unified identity authentication system for multi-application integration in equipment manufacturing enterprises
CHANG Yunpeng, et al.
2026 Vol. 0 (3): 63- [
Abstract
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114
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66
Design and development of human-computer interaction interface in process of cement production optimization
REN Lipeng, et al.
2026 Vol. 0 (3): 66- [
Abstract
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137
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69
Research and application of intelligent control system for pneumatic ash conveying
CHEN Xiaohua, et al
2026 Vol. 0 (3): 69- [
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93
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73
Problems and optimization of employee safety training
BO Zhenzhen
2026 Vol. 0 (3): 73- [
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99
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75
Research on performance of silicon fume for development of sustainable cement-based composite materials
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SONG Xiaogang
In order to clarify the hydration mechanism and performance improvement effect of silica fume (SF)-substituted cement-based composites, this study took ordinary Portland cement (PO) as the matrix and explored the composite effect of silica fume and cement. The results show that within all hydration ages, silica fume substitution significantly enhances the compressive strength of mortar. It promotes the early hydration of C3S and C2S through micro-filling and nucleation effects, and undergoes pozzolanic reaction with calcium hydroxide (CH) generated by cement hydration to form calcium silicate hydrate (C-S-H) gel, leading to a dense microstructure and reduced pores.
2026 Vol. 0 (3): 75- [
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121
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79
Research on fiber reinforcement performance of UHPC
LI Xiaodong, et al.
In order to address the issue of low toughness in Ultra-High Performance Concrete (UHPC), the paper investigates the effects of different fibers, shrinkage reducers and expansive agents on the performance of UHPC. The research results show that the fibers can improve the compressive and flexural strengths of UHPC to a certain extent. Among them, steel fibers have a better effect on enhancing the performance of UHPC than polypropylene fibers. Furthermore, the early autogenous shrinkage of UHPC with 2% steel fiber content is the smallest, with a 72-hour shrinkage rate of 1 165 με, a fluidity of 205 mm, a 28-day compressive strength of 173.4 MPa and a 28-day flexural strength of 35.4 MPa. The research results show that the introduction of fibers has a certain effect on improving the toughness of UHPC. This study has certain reference and application value for enhancing the toughness of UHPC.
2026 Vol. 0 (3): 79- [
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89
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84
Feasibility analysis of 3D printed cement-based materials in prefabrication of small municipal bridge components
LI Guojian, et al
2026 Vol. 0 (3): 84- [
Abstract
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115
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87
Study on effect of concrete accelerator on cement setting time
LIU Chao
2026 Vol. 0 (3): 87- [
Abstract
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94
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91
Research on improving compatibility of concrete and additives in municipal engineering
YANG Liang
2026 Vol. 0 (3): 91- [
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75
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94
Key technologies and mechanism analysis of high-performance concrete resistance to sulfate corrosion
SHI Baoquan
2026 Vol. 0 (3): 94- [
Abstract
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66
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97
Research on application of concrete temperature control construction technology in construction of super large volume concrete structures
CHEN Fuqiang
2026 Vol. 0 (3): 97- [
Abstract
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89
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100
Research on construction technology of ultra-high performance concrete exterior walls in building projects
MA Junxian
2026 Vol. 0 (3): 100- [
Abstract
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87
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103
Key technologies and performance analysis of permeable concrete pavement construction in ecological enhancement projects
CHEN Wenzhong
2026 Vol. 0 (3): 103- [
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98
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106
Key technologies for quality control in tunnel spray cement concrete construction
LIU Qi
2026 Vol. 0 (3): 106- [
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105
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109
Research on concrete construction technology of drilled-bored grouting piles for supporting structure of metro stations
DONG Chenjun
2026 Vol. 0 (3): 109- [
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124
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112
Research on enhancement of concrete strength in residential buildings and adaptability to construction environments
MI Haipeng
2026 Vol. 0 (3): 112- [
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99
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115
Innovative application of prefabricated concrete structures in building construction
SHI Chen
2026 Vol. 0 (3): 115- [
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116
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118
Optimization of construction technology for prefabricated concrete shear wall structures in prefabricated residential buildings
ZHANG Runpeng
2026 Vol. 0 (3): 118- [
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128
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121
Collaborative management and process optimization of prefabricated concrete component installation
WANG Guangpei
2026 Vol. 0 (3): 121- [
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117
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124
Construction technology and quality control of tunnel cement concrete in low temperature environment
LIU Kefan, et al.
2026 Vol. 0 (3): 124- [
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97
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127
Analysis of early concrete cracks in open-cut underground stations and their causes
DING Yong
2026 Vol. 0 (3): 127- [
Abstract
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127
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130
Research on construction technology of prestressed reinforced concrete pipes for municipal water supply and drainage
LI Bingyang
2026 Vol. 0 (3): 130- [
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114
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133
Research on integrated construction technology for concrete pouring of steel box girder bridge deck
CUI Jiakang
2026 Vol. 0 (3): 133- [
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102
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136
Research on force optimization of beam-column joints in concrete frame construction
JIA Lin
2026 Vol. 0 (3): 136- [
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97
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139
Analysis of cracks in channel concrete lining construction and research on whole process prevention and control technology
ZHU Nannan, et al.
2026 Vol. 0 (3): 139- [
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102
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142
Analysis of impact of concrete compressive strength testing frequency on structural quality control
ZHOU Xiaoyu
2026 Vol. 0 (3): 142- [
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98
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145
Research on concrete crack control technology in cantilever suspension construction of hanging baskets
ZHAO Yunxing
2026 Vol. 0 (3): 145- [
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105
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148
Analysis of application of concrete module masonry in drainage inspection wells
ZHANG Yuanshuai
2026 Vol. 0 (3): 148- [
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99
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151
Research on application of high-performance grouting materials in concrete repair of residential buildings
ZHANG Yulong
2026 Vol. 0 (3): 151- [
Abstract
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104
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154
Construction technology of concrete anti-corrosion coating for adjustment tanks in sewage treatment plants
YI Wenbin
2026 Vol. 0 (3): 154- [
Abstract
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118
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