environmental assessment of frostresistant concrete with

Environmental Assessment of Frost-resistant Concrete with ...

Dec 30, 2020  In this study, life cycle assessment methodology is applied to evaluate the overall environmental impact of frost-resistant concrete based on AEA and SAP, respectively. The results illustrate that frost-resistant concrete with SAP has a lower environmental impact than frost-resistant concrete with AEA if the strength and durability of concrete ...

get price

Environmental Assessment of Frost-resistant Concrete with ...

Table 1 shows the mix designs of frost-resistant concrete with different chemical admixtures. Unicon A/S, the largest Nordic supplier of ready-mixed concrete, has provided the mix design of frost-resistant concrete with AEA. The cement type is CEM I 52.5N from Aalborg Portland. The w/c ratio of frost-resistant concrete with AEA is 0.38.

get price

(PDF) Environmental Assessment of Frost-resistant Concrete ...

The environmental impact of frost-resistant concrete is between 24–41% higher than that of ordinary concrete due to its higher content of cement. Superplasticizers contribute with approximately ...

get price

Environmental Assessment of Frost-resistant Concrete with ...

In this study, life cycle assessment methodology is applied to evaluate the overall environmental impact of frost-resistant concrete based on AEA and SAP, respectively. The results illustrate that frostresistant concrete with SAP has a lower environmental impact than frost-resistant concrete with AEA if the strength and durability of concrete ...

get price

Life Cycle Assessment of Concrete (Technical Report) ETDEWEB

Sep 15, 2005  @misc{etde_20693293, title = {Life Cycle Assessment of Concrete} author = {Sjunnesson, Jeannette} abstractNote = {This is an environmental study on concrete that follows the standard protocol of life cycle assessment (LCA). The study is done for two types of concrete, ordinary and frost-resistant concrete, and has an extra focus on the superplasticizers used as admixtures.

get price

Frost Resistance - an overview ScienceDirect Topics

Nov 06, 2010  Margi Eglinton, in Lea's Chemistry of Cement and Concrete (Fourth Edition), 1998. 7.2.3 ASSESSMENT OF FROST RESISTANCE. The frost resistance of aggregates may be assessed from freezing and thawing tests on concrete made from them, but a sodium or magnesium sulfate crystallisation test 5 has also been used as a simulated frost test, although it has not proved a reliable

get price

Environmental Assessment of Frost-resistant Concrete with ...

Dec 30, 2020  In this study, life cycle assessment methodology is applied to evaluate the overall environmental impact of frost-resistant concrete based on AEA and SAP, respectively. The results illustrate that frost-resistant concrete with SAP has a lower environmental impact than frost-resistant concrete with AEA if the strength and durability of concrete ...

get price

Life Cycle Assessment of Concrete

Life cycle assessment of Concrete Abstract This is an environmental study on concrete that follows the standard protocol of life cycle assessment (LCA). The study is done for two types of concrete, ordinary and frost-resistant concrete

get price

Life Cycle Assessment for Ordinary and Frost-Resistant ...

Aug 24, 2019  Abstract. This is an environmental study on concrete that follows the standard protocol of life cycle assessment (LCA) for two types of concrete, ordinary and frost-resistant concrete, with a focus on the superplasticizers used as admixtures. The use phase is not included in this study and the concrete

get price

Life Cycle Assessment of Concrete

Life cycle assessment of Concrete Abstract This is an environmental study on concrete that follows the standard protocol of life cycle assessment (LCA). The study is done for two types of concrete, ordinary and frost-resistant concrete

get price

NCR no. 63 – 2/2020 Nordic Concrete Federation

Feb 26, 2021  NCR no. 63 – 2/2020. Posted on 26. February 2021. 1. Alkali-reduced Bauxite Residue as Novel SCM. 2. Review of Sprayability of Wet Sprayed Concrete. 3. Environmental Assessment of Frost-resistant Concrete with

get price

Environmental Assessment of Concrete Structures

Jan 03, 2012  Life Cycle Assessment (LCA) is a tool that enables identifying environmental issues related to both finished products and services, and allows focusing efforts to resolve them. The main objective of this paper is to asses LCA applicability on concrete structures so that construction’s environmental

get price

Life Cycle Assessment of Portland Cement Concrete ...

Life Cycle Assessment of Portland Cement Concrete Interstate Highway Rehabilitation and Replacement . By . Craig D. Weiland Stephen T. Muench Graduate Assistant Assistant Professor . Department of Civil and Environmental

get price

Environmental Assessment of the Concrete Based on Blast ...

Environmental Assessment of the Concrete Based on Blast Furnace Slag. Article Preview. Abstract: The paper deals with the use of blast furnace slag in the production of plain concrete and with its

get price

Marianne Tange Hasholt — Welcome to DTU Research Database

frost Earth Environmental Sciences 34%. void Earth Environmental Sciences 33%. polymer Earth Environmental Sciences 32%. View full fingerprint ... Environmental Assessment of Frost-resistant Concrete with

get price

Environmental assessments

EPDs and EN 15804. An Environmental Product Declaration, EPD, is a document that reports environmental data of products based on life cycle assessment (LCA) and other relevant

get price

Marianne HASHOLT Associate professor MSc, PhD ...

Environmental Assessment of Frost-resistant Concrete with Superabsorbent Polymers. Article. Full-text available. ... (AEA) are normally used to improve the frost resistance of concrete. However ...

get price

(PDF) Frost resistance of recycled aggregate concrete ...

The frost resistance of concrete is also affected by its porosity, the presence of water within it, and the environmental conditions [12 -15]. As part of an assessment of different methods of testing the

get price

Mechanical Performance and Environmental Assessment of ...

A sand point equal to 43% was assumed. For gravel, the percentage advantage of natural aggregate fraction 2/8 (60%) over the 8/16 (40%) mm fraction was adopted, as it is a solution reducing the cost of fibre concrete and supporting environmental

get price

[PDF] MEASURING THE LIFE-CYCLE ENVIRONMENTAL AND

This paper presents an overview of the approach taken by the Building for Environmental and Economic Sustainability (BEES) program to address sustainability by measuring the life cycle environmental and economic performance of construction products, specifically of concrete, The BEES approach is explained and its application to alternative concrete

get price

Concrete Pavement Mixture Design and Analysis (MDA ...

Concrete will suffer frost damage when saturated and subjected to freezing temperatures. Frost-durable concrete can be produced if a specialized surfactant, also known as an air-entraining admixture (AEA), is added during mixing to stabilize microscopic air voids. Small and well-dispersed air voids are critical to produce frost-resistant concrete.

get price

Frost Resistance of Alkali-Activated Concrete—An Important ...

Sustainable development of concrete construction requires sustainable materials or sustainable binders. Specifically, alkali-activated materials (AAMs) are an interesting and wide group of materials. They have good strengths and are considered environmentally friendly materials because secondary materials are consumed during the preparation of AAMs. The durability of AAMs is also excellent ...

get price

CONCRETE SUSTAINABLE SOLUTIONS MORE VALUE LESS

High early strength Concrete Frost resistant Concrete Self-compacting Concrete Pumped Concrete Waterproofing Concrete Normal Concrete 0 50 150 200 300 350 Global Warming Potential [kg CO 2-eq.] for 1m³ concrete 100 250 Water 0 0.05 0.15 0.25 Input Water [m³] for 1m³ concrete 0.10 0.20 Shrinkage reduced Concrete Marine Concrete Winter ...

get price

[PDF] Environmental Assessment of Ultra-High-Performance ...

There is a common understanding that the environmental impacts of construction materials should be significantly reduced. This article provides a comprehensive environmental assessment within Life Cycle Assessment (LCA) boundaries for Ultra-High-Performance Concrete (UHPC) in comparison with Conventional Concrete (CC), in terms of carbon, material, and water footprint.

get price

Freeze-Thaw Resistance

Freeze-Thaw Resistance. When water freezes, it expands about 9 percent. As the water in moist concrete freezes it produces pressure in the pores of the concrete. If the pressure developed exceeds the tensile strength of the concrete, the cavity will dilate and rupture. The accumulative effect of successive freeze-thaw cycles and disruption of ...

get price

Concrete Exposure Classes Environmental Actions

NOTE 2 The concrete may be subject to more than one of the actions described in Table I and the environmental conditions to which it is subjected may thus need to be expressed as a combination of exposure classes. For a given structural component, different concrete surfaces may be subject to different environmental actions.

get price

FREEZE-THAW DURABILITY OF PORTLAND CEMENT

properties; however, a comprehensive assessment of these variables on freeze-thaw durability or air void parameters due to the ambient and cryogenic types of crumb rubber ... sustainable option for producing frost resistant concrete and also provide an opportunity for economic and environmental friendly solution for the disposal of high amount ...

get price

Life Cycle Assessment of Natural and Recycled Concrete ...

Apr 07, 2019  The environmental impacts of natural aggregates (NA) and recycled concrete aggregates (RCA) production for use in road pavements have been evaluated in this study through an attributional life cycle assessment (LCA) from cradle to gate.

get price

Life-cycle inventory analysis of concrete production: A ...

Aug 01, 2014  For a full environmental assessment of concrete production, it is essential to define major processes taking place in the production of concrete and its constituents. Fig. 1 demonstrates the cradle-to-gate system boundary considered herein, including the main components of the life-cycle stages, the processes within these stages, and the ...

get price

Life-Cycle Assessment of Concrete Dam Construction ...

Dec 12, 2013  Thus, this paper aims to evaluate the environmental loads in the lifetime of a dam and reveal the environmental impact of RFC relative to CC over the entire life cycle of a concrete dam. Through reviewing the limitations of the existing life-cycle assessment (LCA) models, a hybrid LCA model is applied to achieve this goal.

get price

Reliable assessment of resistance of concrete paving ...

Currently, in testing the resistance to freeze-thaw with de-icing salt, only the degree of scaled material from the facing concrete is assessed, in practice with the slab test and CDF procedure laboratory testing methods, also for two-layer concrete paving blocks. An assessment of the core concrete

get price

Steel versus Steel-Reinforced Concrete Bridges ...

Sep 01, 1998  In this paper, we present results of a life cycle inventory analysis of steel and steel-reinforced concrete bridge girders, based on publicly available data. We find that for the initial construction of equivalent designs for a particular location, a steel-reinforced concrete bridge generally has lower environmental effects than a steel bridge.

get price

ERDC Knowledge Core: Technical Report

Technical Report SL-94-21 - Environmental Assessment and Finding of No Significant Impact (FONSI) of the Underground Technology Program, Rodgers Hollow, Fort Knox, KY [1] Technical Report SL-94-22 - Salado Mass Concrete : Mixture Development and Preliminary Characterization [1]

get price

"FREEZE-THAW DURABILITY OF PORTLAND CEMENT CONCRETE

Ground tire rubber also known as crumb rubber has been widely used in asphalt concrete over the past several years due to its ability to improve temperature susceptibility of asphalt binders and enhance the performance of asphalt pavements. However, its inclusion in portland cement concrete is comparatively recent and more research is needed before adopting it as a regular construction material.

get price