Pitch-faced concrete is becoming a very popular element of modern architecture in the 21st century. In particular, demand for facades increasing globally. On other hand, climate change, environmental degradation, and limited resources are motivations sustainable building materials. The construction industry one highest emitters CO2 greenhouse gases, which plays major role. Thus, reduction volume consumption essential to control gases. One approach this problem use textile reinforced (TRC)....

Recycled aggregate concrete (RAC) has significant potential for sustainable construction; however, concerns regarding its mechanical performance and environmental impact persist. This study evaluates 26 RAC mixtures with varying cement content, water–cement ratios, recycled replacement levels (30%, 50%, 100%) using two distinct recycling processes. The results confirm that while exhibits a decline in properties compared to natural (NAC), lower-strength classes maintain acceptable...

For a sustainable building industry, reusable construction with low demand for primary resources is needed. Moreover, if we want to reduce the amount of and demolition waste, recycled aggregate should be considered. To investigate environmental impacts such concrete construction, life cycle assessment (LCA) was used compare following types construction: Reusable blocks brick aggregate, concrete, natural regular wall. Firstly, properties new were measured, as physical, mechanical, thermal...

Reinforced concrete (RC) structures represent one of the most widespread building systems around world. This paper deals with optimization load-bearing RC in terms cost and environmental impact. The results are dimensions reinforcement structural elements for which total construction costs impacts lowest. Six variants were designed analyzed a case study. was evaluated on basis national pricing system. life cycle assessment (LCA) characterization model according to ReCiPe methodology version...

This article deals with the possibility of utilization secondary-raw materials as a natural sand replacement in concrete. Four types waste construction were examined—recycled aggregate from four different sources. The was examined well used reference sample. All samples tested to evaluate water absorption, particle size distribution, and density. basic chemical reactions view ecotoxicology are investigated measured based on Czech standards. Chemical analysis, Lemna growth inhibition test,...

In the case of concrete sustainability, two main ways are generally discussed: (1) reduction natural raw materials and (2) emissions related to production. Following second point, there have not yet been reported clear results. This problem is given enough attention in present publications. study brings a general view this issue basic comparison with common traditional reinforcement. deals life cycle analysis slab made recycled aggregate fine aggregate. The was designed according limit...

The climate change adaptation strategies for the railway tunnels project are managed by digital multidisciplinary coordination, or Building Information Modelling (BIM), and case study is focused on Taipei Metro (MT) Tamsui–Xinyi Line in Taiwan tunnel analysis. With increasing impacts (such as flooding, earthquakes, extreme temperature, sea level rise, etc.) infrastructure, BIM offers a transformative approach to enhance resilience. This research integrated six dimensions (2D & 3D models,...

Recycling of materials such as masonry or concrete is one the suitable ways to reduce amount disposed construction and demolition waste (CDW). However, environmental safety products containing recycled must be guaranteed. To verify overall benefits concrete, this work considers ecotoxicity well potential impacts their life cycle. Moreover, related with carbonation considered in terms durability influence CO2 uptake. Concrete fine aggregate from two different sources (masonry concrete) were...

Ceramic tableware, as one of the products daily use, can be produced in multiple ways. However, they all consume primary raw materials for manufacturing and energy firing generate emissions waste. To assess how different types production cause an environmental impact, five scenarios were compared using Life Cycle Assessment (LCA). In first step, material flows from following analysed: factory (FAC), slip casting (PSC), pottery wheel (PW), high rate formation technique (HERF) experimental...

Cement-based materials and their design are in the center of effort to reduce CO2 emissions. Following this, a way how replace cement concrete mixture is searched. In this study, we assessed environmental perspectives recycled powder (RCP) as replacement, which produced by-product recycling process. First, reference was prepared new mixtures were designed with replacement ratios 10, 20, 30, 40 50 % RCP. Their mechanical properties measured such dry density, compressive strength, workability....

Abstract The main objective of the present project for Czech government was to create a catalogue construction products and materials which contain recycled content from demolition waste. motivation work support higher utilization with secondary raw in Republic. It designed architects, designers, civil engineers, contractors public private investors. provides an overview content, list valid requirements on listed standards legislation. Examples good practice are presented break existing...

Abstract A key prerequisite for the implementation of circular economy principles in building sector is effort to maximize use construction and demolition waste, which is, however, limited by low demand secondary raw materials Czech Republic. The reason this variable difficult-to-predict availability these at place time planned variability their technical characteristics, leads insufficient scope market reclaimed materials. Therefore, objective was develop an online tool processing audits a...

Abstract The demand to reduce the use of raw materials, construction waste, and negative environmental impacts sector is constantly increasing. New circular design strategies, such as Design for Disassembly, are intended meet these challenges. Furthermore, strategies facilitate easy quick replacement building components during end-of-life phases, well efficient waste-free deconstruction entire buildings subsequent reuse. However, structures developed according can have a higher burden in...

The environmental impacts of buildings are based on the construction products, which together with their packaging can be assessed as one product system. To reduce buildings, products and need to optimised analysed using assessment. purpose this study is assess related according Life Cycle Assessment method. assessment was performed Product Environmental Footprint methodology, version 3.0. compare primary, secondary, tertiary packaging, results climate change indicator were used a base...

Abstract Concrete containing primary raw resources such as sand and gravel can be replaced by recycled aggregate concretes (RAC). But recycling processes are energy-consuming thus energy consumed. To investigate the resource consumption overall environmental impact related to life cycle of RAC, Life Cycle Assessment (LCA) was used compare ten RAC foundation structures with two just natural (NA). This paper presents characteristics types for various replacement rates NA (30%, 50%, 100%)....

Abstract This contribution is aimed to evaluate the environmental impacts of recycling construction and demolition waste with use Life Cycle Assessment. In first step, LCA was used as an analytical tool for comparison recycled aggregates production. Recycled were produced from brick concrete waste. Chosen functional unit 1 ton aggregate (RA). The results show that production has a higher impact on Climate Change category (1,51 kg CO 2 eq.) than (1,18 eq.). Then, in second new mixtures made...

The building industry consumes a large amount of primary raw materials and also contributes significantly to the production waste. Applying circular principles in this field reduce resource consumption waste has been investigated several projects considering reuse or recycling construction demolition However, can be reduced by re-targetting from different industries municipal produce new products. Thus, opportunities for industrial were project. main output is catalogue, which provides an...

Recyklací stavebního a demoličního odpadu jsou produkovány materiály, které mohou být využity jako náhrada primárních surovin. Tyto recyklační procesy ale energeticky náročné, proto je nutné posuzovat environmentální dopady takových procesů. Posuzovali jsme recyklovaného betonového cihelného kameniva také produktů s recyklovaným obsahem. Metoda Posuzování životního cyklu byla použita analytický nástroj pro vyhodnocení environmentálních dopadů recyklovaných materiálů (1 t kameniva), výrobků...

The construction elements produced with low demand for primary resources are being developed in the building industry. However, not only consumption of but also environmental impacts such products should be considered to increase sustainability To investigate lightweight concrete blocks, life cycle assessment (LCA) was used as an analytical tool according EN 15 804 + A2. Firstly, properties fine grounded powder (FRWC) were measured declare functionality and potential use product. Then, block...