concrete and the environment

Cement Manufacture and the Environment Part II

Hydraulic chiefly portland cement the binding agent in concrete and most mortars is an important construction material Portland cement is made primarily from finely ground clinker a manufactured intermediate product that is composed predominantly of hydraulically active calcium silicate minerals formed through high temperature burning of

Concrete in the Marine Environment Taylor & Francis eBo

Concrete has clearly emerged as the most economical and durable material for the building of the vast majority of marine structures Reinforced concrete too has overcome the technological problems making it a suitable material for the construction of advanced marine structures such as offshore drilling platforms superspan bridges and undersea tunn

A review on the deterioration and approaches to enhance the durability

The actual life of marine concrete structures is usually much shorter than the designed service time due to various attacks from seawater [1] Chloride induced reinforcement corrosion is regarded as the primary durability issues [[2] [3] [4] [5]] Although corrosion resistant reinforcements including stainless steel [6] and fiber reinforced

Explained Cement vs concrete — their differences and

There s a lot the average person doesn t know about concrete It s porous; it s the world s most used material after water; and it s not cement MIT's Concrete Sustainability Hub describes the world s most consumed construction material and its environmental impact

Integrating Plastic Waste into Concrete

Concrete is the most utilized construction material worldwide In the marine environment it is subject to chemical degradation through reactions with chloride the most important ion and sulfate and magnesium ions in seawater and to biodeterioration resulting from biological initially microbiological activities principally acid production These two

Building Materials And The Climate

Construction materials account for a significant proportion of nonfuel materials flows throughout the industrialized world Hydraulic chiefly portland cement the binding agent in concrete and most mortars is an important construction material Portland cement is made primarily from finely ground clinker a manufactured intermediate product

Decarbonizing cement and concrete value chains McKinsey

The built environment accounts for approximately 40 percent of global CO 2 emissions from fuel combustion and 25 percent of global greenhouse gas GHG emissions 1 Tony Hansen Focko Imhorst Anna Moore and Sebastian Reiter Glasgow COP26 2021 Decarbonizing the built environment McKinsey November 11 2021 As a part of these

How does concrete and cement industry transformation

Most of the modern urban environment is built of concrete which is cement based and steel Manufacturing these most pervasive industrial materials comes at a considerable cost in energy and greenhouse gas emissions Cement and concrete are among the major manufactured materials in use and their usage is being questioned

Making Concrete Change Innovation in Low

Abstract The cement industry contributes about 5% to global anthropogenic CO2 emissions making the cement industry an important sector for CO2 emission mitigation strategies CO2 is emitted from the calcination process of limestone from combustion of fuels in the kiln as well as from power generation In this paper we review the total CO2 emissions from

Study on pore structure and the mechanical properties of

The mechanical properties of the composite sandstone concrete specimens under a freeze thaw environment are developed comprehensively and a generalized model of the microscopic frost damage

Environmental impacts and decarbonization strategies in the cement

Concrete is one of the most widely used man made materials and is critical for the ongoing urbanization of the global population However owing to its widespread use concrete can have a negative impact on the environment This Review provides medium term and long term solutions to address the environmental concerns surrounding

Smart materials and technologies for sustainable concrete

Concrete is a sustainable and versatile construction material which can produce structures that last for thousands of years Due to the many areas of application concrete is the second most consumed material on Earth only after water with a global production of around billion tons of cement in 2021 Statista 2023 and an annual

Less carbon producing sustainable concrete from

Despite concrete s many benefits it also has its downsides including concerns over its impact on the environment due to cement production Cement is the most important and expensive ingredient in concrete It is made through an energy intensive process involving highly elevated temperatures around 1510 °C 2750 °F to form calcium

An Overview of Eco Friendly Alternatives as the Replacement of Cement

Cement concrete and environment Nowadays the construction sector is challenged for using many virgin materials and energy as well as environmental effects

PDF Environmental Impact of Concrete ResearchGate

The manufacturing of concrete however also makes it one of the most detrimental materials to the environment [6] A typical concrete mixture consists of 12% Portland cement

Evaluation of the Efficiency of Limestone Powder in Concrete

The major environmental impact of concrete comes from the CO2 emissions produced during the cement manufacturing process The main goal of this research project is to evaluate the efficiency of limestone powder as a partial cement replacement in order to reduce energy consumption and CO2 emissions This study utilizes limestone powders

Study on the fracture performance for rock concrete

This suggests that the excessive damage caused by the hot dry environment at the rock concrete interface occurred when temperature reached up to 100 °C In general this deterioration in fracture toughnesses for groups cured in the hot dry environment was attributable to the incomplete hydration of cement and the autogenous

Advancements in nano enabled cement and concrete

The built environment accounts for around 39% of worldwide greenhouse gas GHG emissions when upstream energy is included [1] Being the second most consumed material in the world concrete has associated a significant environmental load which results mainly from the Ordinary Portland Cement OPC used as a binder

Concrete s role in reducing building and pavement emissions

Concrete pavements for instance can reduce vehicle fuel consumption while concrete structures can endure hazards without needing energy and materials intensive repairs Concrete s impacts then are as complex as the material itself — a carefully proportioned mixture of cement powder water sand and aggregates

Cement is a big problem for the environment Here s how to

Cement is of course a key ingredient of concrete so an obvious solution would be to reduce the amount of concrete the world needs But concrete is the second most widely used material after water and its global annual production is forecast to grow from 14 billion m³ today to 20 billion m³ by mid century as human societies urbanize

The Greenhouse Gas Emissions Produced by Cement

The paper highlights the overview of cement processes and contribution of cement industry in causing the emissions and their impact on the environment and health {The Greenhouse Gas Emissions Produced by Cement Production and Its Impact on Environment A Review of Global Cement Processing} author={Najabat Ali and Abbas

The Environmental Impacts of Concrete

Cement production is a complex and essential process that involves several stages and impacts various aspects of the construction industry and the environment The first step in cement production is the extraction of raw materials primarily limestone clay and shale [34] These materials are typically obtained from quarries or mines where