Study on the Material Performance of Ceramsite Concrete Roof Brick

Han, Rubing; Xu, Zhimao; Qing, Yutao

doi:10.1016/j.proeng.2017.10.401

Cited by 12 publications

(3 citation statements)

References 3 publications

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“…It investigated how the workability mechanical and thermal properties of lightweight aggregate concrete are related to each other, wanting to achieve the properties of low density with high thermal insulation [21]. Different particle sizes of ceramic aggregate were designed to study the insulation performance when being used as roof material in buildings [22], and the research reveals that using water storage bricks made from ceramic concrete in the energy-saving reconstruction of existing buildings roofs is feasible. Concrete made with ceramic aggregate has been proven a better thermal insulation product than conventional concrete due to its pore characteristics [23,24].…”

Section: Introductionmentioning

confidence: 99%

Studying Thermal and Mechanical Properties of Recycled Concrete by Using Ceramic Aggregate

Wang

Deng

et al. 2023

Sustainability

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Ceramic aggregate has the characteristics of light weight, heat insulation, and low cost, and recycled aggregate is a type of green material that realizes the re-crushing of construction waste. This paper studied the impact of replacing natural coarse aggregate with ceramic aggregate and natural sand with recycled fine aggregate, on the physical, mechanical, and thermal properties of concrete. Recycled fine aggregate was used to completely replace natural sand. A total of five concrete mixes (including a reference mix) were prepared with different levels of ceramic aggregate (0%, 30%, 50%, 70%, 100%). Density, compressive strength, thermal conductivity, and thermal inertia index were measured to evaluate the performance of each mixture, and ceramic concrete board and hollow blocks were designed for testing the thermal properties. Results of testing show that density, strength, and thermal performance are interrelated. The smaller the density, the lower the strength, and it indicates that ceramic aggregate has a negative influence on strength in concrete. Meanwhile, the smaller the density, the higher the thermal resistance, and the addition of ceramic aggregate can improve the thermal insulation of concrete. The mechanical and thermal properties are both affected by the ceramic replacement ratio. Ceramic aggregate improves the thermal properties of recycled concrete, and the negative influence of ceramic aggregate on compressive strength can be controlled by the replacement ratio of aggregate in concrete. Based on the overall comparison and analysis, a mix with 50% ceramic aggregate shows relatively better strength and thermal insulation compared to other mixes. The use of ceramic aggregate in combination with recycled fine aggregate can effectively reduce the environmental pollution and make an economical substitute for their natural counterparts.

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Section: Introductionmentioning

confidence: 99%

Studying Thermal and Mechanical Properties of Recycled Concrete by Using Ceramic Aggregate

Wang

Deng

et al. 2023

Sustainability

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“…As an assembled building, being lightweight is the primary requirement [ 3 ], and a lighter wall panel weight can help reduce the overall weight of the assembled building while reducing the permanent load of the load-bearing panels in the structure. Ceramsite concrete wall panels have become mainstream in the fabricated building wallboard market due to their low heat conductivity [ 4 ], low density [ 5 ], good permeability resistance [ 6 ], low early age autogenous shrinkage [ 7 ], and early and faster gains in strength [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Quantification of Ceramsite Granules in Lightweight Concrete Panels through an Image Analysis Technique

Yang

Лю

et al. 2022

Materials

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Ceramsite particles are an important component of lightweight ceramsite concrete wall panels, and the density of the aggregate is much lower than the density of the slurry. It is generally accepted that there are inhomogeneities in the distribution of ceramsite particles in wall panels. Ceramsite concrete wallboard material is a research hotspot in the field of fabricated building materials at home and abroad; however, there is no effective way to quantify their inhomogeneity. Based on the application of image recognition technology in concrete homogeneity, a method to quantitatively evaluate the distribution of light aggregates in wall panels was developed. Three commercial lightweight vitrified concrete wall panels were cut into 324 cubes. The four cut surfaces of each specimen were photographed to analyze the proportion of ceramsite particle area, while the density, ultrasonic pulse velocity, and compressive strength of the specimens were tested. The results demonstrated that the image analysis method could effectively describe the homogeneity of the panels. The proportion of particle area of aggregate in the section of the cube had a strong correlation with the compressive strength, ultrasonic pulse velocity, and density, and there was an obvious linear relationship with the height of the plate where the cube was located. Based on this, the correlation equations of the proportion of particle area of aggregate, density, ultrasonic pulse velocity, compressive strength, and the height where the specimen was located were proposed. The quantitative parameters of the relevant properties of the wall panels were also obtained: the maximum difference between the proportion of particle area of the aggregate was 24%, the maximum difference between the density at the top and bottom of the wall panels was 115 kg/m3, and the maximum difference in the strength reached 5 MPa.

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“…[8][9][10][11][12][13][14] Fan et al 15 employed an orthogonal experiment to determine an optimum mix proportion for ceramsite concrete at a curing temperature of 20, 40, and 60°C. In order to study the feasibility of the ceramsite concrete applied in energy saving renovation of existing buildings roof, Han et al 16 used three kinds of different particle sizes of ceramsite-including big (diameter of 15-18 mm), medium (diameter of 6-9 mm), and small (diameter of 3-5 mm) particle sizes-river sand, and concrete with the same ratio to make bricks for studying the physical properties and mechanical properties. Yu et al (2015) 12 produced a kind of new ceramsite concrete building materials which was added with a moderate amount of polystyrene particles to improve its physical properties.…”

Section: Introductionmentioning

confidence: 99%

Experiment and application of ceramsite concrete used to maintain roadway in coal mine

Chen

Hui

Hong-wei

et al. 2020

Measurement and Control

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This paper presents a scientific basis and reference for the application of ceramsite concrete in underground coal mines. Taking fly-ash ceramsite as raw material, a variety of mix proportions of C20 ceramsite concrete were proposed by changing the sand rate of concrete. The results showed that: (1) fly-ash ceramsite has different water absorption performance with different particle sizes. The water absorption stopped after soaked for 48 h. So, the ceramsite should be soaked for more than 48 h to prevent the cement from hydrating insufficient which affects the mechanical properties of the concrete. (2) Seven mix proportions of C20 ceramsite concrete were designed by changing the ceramsite proportion. The ceramsite proportion of 43% was determined as optimal scheme whose 28-day strength was 29.60 MPa and elastic modulus was 12.45 GPa. (3) The optimal scheme was applied and verified in the field. The early strength of ceramsite concrete promotes quickly, 3-day strength was 16.8 MPa, and the 28-day strength was 29.9 MPa. Compared with ordinary pebble concrete, ceramsite concrete can provide faster, higher strength support to the roadway. Meanwhile, ceramsite concrete have properties of lightweight, and its application will bring economic and social benefits.

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Study on the Material Performance of Ceramsite Concrete Roof Brick

Cited by 12 publications

References 3 publications

Studying Thermal and Mechanical Properties of Recycled Concrete by Using Ceramic Aggregate

Studying Thermal and Mechanical Properties of Recycled Concrete by Using Ceramic Aggregate

Quantification of Ceramsite Granules in Lightweight Concrete Panels through an Image Analysis Technique

Experiment and application of ceramsite concrete used to maintain roadway in coal mine

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