A 3D Printed Ready-Mixed Concrete Power Distribution Substation: Materials and Construction Technology.

Materials (Basel)

Department of Structural Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China.

Published: May 2019

Currently, 3D concrete printing technology is not yet able to print ready-mixed concrete with coarse aggregates. Based on an independently developed 3D printing construction equipment system and optimized concrete materials, a 3D concrete printer that can directly print ready-mixed concrete is developed. This paper introduces the whole 3D printing process for one power distribution substation in detail, including the printing equipment, key software, concrete preparation, printing process, and construction inspection. This investigation will provide valuable design and construction experience for the future construction of 3D concrete printing.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6539074PMC
http://dx.doi.org/10.3390/ma12091540DOI Listing

Publication Analysis

Top Keywords

ready-mixed concrete
12
concrete
8
power distribution
8
distribution substation
8
concrete printing
8
print ready-mixed
8
printing process
8
printing
6
construction
5
printed ready-mixed
4

Similar Publications

Challenges of a Circular Economy: The Example of Raw Recycled Tyre Steel Fibres Added to Concrete.

Materials (Basel)

September 2024

Department of Building Materials Technology, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Cracow, Poland.

Article Synopsis
  • This research explores the use of untreated recycled tyre fibres as concrete reinforcement, focusing on sustainability and circular economy principles.
  • It compares traditional steel fibres with varying amounts of tyre fibres (25 kg/m and 45 kg/m) and examines their impacts on concrete properties like strength and fibre distribution.
  • The findings suggest that while using tyre fibres can still create durable concrete, it necessitates careful control of concrete parameters due to structural disturbances caused by higher fibre quantities.
View Article and Find Full Text PDF

Calcined clays (CCs) as supplementary cementitious materials (SCMs) can be a promising option to reduce clinker content and CO emissions in eco-friendly concretes. Although CCs as components of composite cements in combination with Ordinary Portland Cement (OPC) and limestone powder (LSP) have attracted industry interest, their use as concrete additives is limited. This study investigates the effects of the addition of CCs on the fresh and hardened properties of industry-standard ready-mixed concretes.

View Article and Find Full Text PDF

As an environmentally friendly natural polymer, citric acid-modified chitosan (CAMC) can effectively regulate the hydration and exothermic processes of cement-based materials. However, the influence of CAMC on the macroscopic properties of concrete and the optimal dosage are still unclear. This work systematically investigates the effects of CAMC on the mixing performance, mechanical properties, shrinkage performance, and durability of concrete.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigated how varying the water content in ready-mixed concrete affects its performance, focusing on compressive strength, porosity, and bleeding.
  • Results indicated that increasing the unit water content by 25 kg/m or more can significantly lower compressive strength and enhance bleeding, which compromises concrete quality.
  • To ensure normal strength and durability, it is recommended to keep additional water content changes to 15 kg/m or less and maintain a water-cement ratio of 48% or lower for optimal concrete management.
View Article and Find Full Text PDF

CO emission hotspots analysis on supply chains for wooden houses in Japan.

J Environ Manage

February 2024

Faculty of Economics, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.

Ninety-four percent of CO emissions induced by final demand in the global construction sector stem from the supply chain. Therefore, it is necessary to identify the CO emission hotspots within the supply chain and implement targeted reduction measures. This study proposed a supply chain clustering approach considering the functional unit of houses and identified CO emission hotspots within the supply chain structure of wooden houses, which accounted for approximately 90% of the total housing stock in Japan.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!