Cementitious properties

Part 1 of ebook "Design and control of concrete mixtures: The guide to applications, methods, and materials (Fifteenth edition)" provides readers with contents including: Chapter 1 - Introduction to concrete; Chapter 2 - Sustainability; Chapter 3 - Portland, blended and other hydraulic cement; Chapter 4 - Supplementary cementitious materials; Chapter 5 - Mixing water for concrete; Chapter 6 - Aggregates for concrete; Chapter 7 - Chemical admixtures for concrete; Chapter 8 - Reinforcement; Chapter 9 - Properties of concrete;...

245p giangdongdinh 28-05-2024 5 2   Download

In Viet Nam, natural fibre-reinforced cementitious matrix (N-FRCM) can be a material solution in some situations and works if research is oriented. This paper presents a state-of-the-art review of the physical and mechanical properties of N-FRCM composite. By inheriting previous review studies in the literature, this paper updates more on the experimental studies on the N-FRCM composite in the last decade.

15p viohoyo 25-04-2024 1 1   Download

Part 1 book "Masonry design and detailing" includes content: History and development of masonry technology, raw materials and manufacturing processes, clay and ceramic products, cementitious masonry units, natural stone, mortar and grout, masonry accessories, wall types and properties, movement and moisture control, masonry walls and veneers.

386p dianmotminh00 17-04-2024 4 3   Download

Part 1 of ebook "Civil engineering materials" has presents the following content: units; strength of materials; failure of real construction materials; thermal properties; pressure; electrical properties; chemistry of construction materials; properties of fluids in solids; transport of fluids in solids; transport of ions in fluids; ionising radiation; variability and statistics; use of test results; specifications and standards; reporting results; testing construction materials; introduction to cement and concrete;...

216p dieptieuung 20-07-2023 9 3   Download

This article introduces a Gaussian process regression using machine learning approach to predict the behavior of reinforced fly ash concrete (RFAC) columns in the form of axial load (N) - midheight lateral displacement (∆) relation curve.

14p vimclaren 12-10-2022 8 2   Download

This study aims to investigate the long-term mechanical properties and durability of cementitious composites (CC) with low polypropylene (PP) fiber content and local river sand.

12p vimclaren 12-10-2022 4 2   Download

This study aims to develop an HPFRM with low polypropylene fiber content by using locally available ingredients in Southern Vietnam to address the deficiencies commonly observed in traditional cement grout mortars. Three mixture proportions were prepared with different water-to-binder (w/b) ratios of 0.2, 0.25, and 0.3. Then, the performance of HPFRM was evaluated in both fresh and hardened stages.

17p viaudi 29-08-2022 6 2   Download

Applying nano-silica, as cementitious materials in concrete mixes, is expected to be an improving technique, from both mechanical properties and durability points of view. Th is study aims to analyse the characteristics of fractures in concrete beams incorporating nano - silica in bending tests, such as fracture energy, characteristics of crack length, and crack propagation.

6p vistephenhawking 26-04-2022 8 1   Download

The present research aims to investigate the influence of the ratio of reinforced concrete layer height to total height (h/H) on the mechanical properties of functionally graded concrete (FGC) containing fly ash (Fa) and polypropylene (PP) fiber. All FGC samples were prepared with a constant water-to-cementitious materials ratio of 0.36 and ordinary Portland cement was replaced with Fa at 20% by mass.

14p inception36 30-11-2021 9 3   Download

This paper presents the experimental characterization and analytical modeling for fire performance of carbon TRC under the thermomechanical regime at constant tensile force. The carbon TRC is manufactured from the cementitious matrix with good thermal properties (refractory matrix) and the reinforcement of carbon textiles.

12p inception36 30-11-2021 11 1   Download

Based on the increase in tensile strength and toughness (43% and 30%, respectively), the feasibility of the hybrid nanofibers containing Single-walled carbon nanotubes and Nylon 66 on reinforcing cementitious materials has been clarified. The well-linking effect of nanofibers in the microstructure of hardened cement pastes has been found by scanning electron microscope (SEM) analysis and well-explained for the increase in mechanical strengths. Besides, field emission transmission electron microscope (FE-TEM) analysis has also been conducted to analyze the properties of the hybrid nanofibers.

10p thayboitinhyeu 02-03-2020 12 0   Download

The main goal of the present work is to study the mechanical response of glass/epoxy composites when exposed to cement and geopolymer (metakaolin) mortars, as it happens in Civil Engineering applications. For this purpose, specimens were embedded into mortar followed by a period of curing, which was done under the air laboratory environment. For cement, curing was also performed inside a container filled with water. The specimens were removed from the mortars after 30, 60 or 90 days of curing and then tested.

26p christian2605 11-10-2019 71 4   Download

Polymer cement mortar (PCM) is a widely used cementitious repairing material due to its considerable adhesive property with concrete. However, the polymers are sensitive to elevated temperatures. The behaviours of polymers and PCM at elevated temperatures (e.g., 60 °C) for short, moderate duration and cyclic conditions remain unknown and need to be explored. This work was aimed at studying the mechanical performance of PCM and PCM-concrete composites under the aforementioned exposure conditions.

12p christian2605 11-10-2019 14 0   Download

The high temperatures of fires affect the physical and chemical properties of the concrete and thus influence its mechanical properties. This paper presents the results of an experimental investigation on the compressive strength at high temperatures of high-strength fibre concretes. The influence of the high temperatures on the physical and chemical changes of the concrete was also analysed by Thermo Gravimetric Analysis/Differential Thermal Analysis (TGA/DTA), X-Ray Diffraction (XRD) and Scanning Electron Microscopy with Energy Dispersive Spectrometry (SEM/EDS).

20p christian2605 10-10-2019 24 2   Download

The research in the field of cementitious materials has brought towards many non-traditional binder systems. One of these systems, a ternary binder composed of calcium aluminate cement (CAC), ordinary Portland cement (OPC), and calcium sulfate (C$Hx), called ettringite binder, offers a possibility of very rapid development in mechanical strength. In this research, 18 different ternary mixtures were tested with two types of calcium sulfate, i.e. anhydrite and hemihydrate.

6p vinobita2711 31-05-2019 15 0   Download

Class F fly ash is used to replace the OPC on the mass basis of the total cementitious material (CM) at the replacement portion of 0%, 10%, 20% and 40% while the water and CM ratio is constant at 0.4. The flexural and compressive strengths of all mixes are determined up to 90 days.

4p vidanh95 12-12-2018 15 1   Download

We cover your legal liability for any loss or damage to other people’s property and loss or damage consequent upon damage to other people’s property resulting from the use of your car during the period of cover. The use of a caravan or trailer attached to your car is also covered. We will pay up to a total of $20,000,000 for all claims arising from the one event. Any person using your car with your permission and who complies with the terms and conditions of this policy is covered. Your employer or principal is covered if you are driving your car in...

91p nhacchovina 23-03-2013 42 5   Download

The chemical properties of organics of health concern – hydrophobic and not water soluble - results in a low bioavailability to plants. Plant growth is dependent on the water solubility of nutrients and minerals and water is the transporting vector. Organics with a low water solubility will therefore not be taken up by plants. The presence of organic environmental pollutants, like dioxins and PCBs in agricultural crops is more the result of atmospheric deposition than direct absorption from contaminated soil.

93p ut_hai_can 29-12-2012 79 5   Download

In the implementation of our strategy we focus on the following ESG factors: Environmental: For us this means that we focus on climate change. We believe that climate change issues are very important and that climate change (related) policy will lead to more focus on, for instance, energy efficiency and urban regeneration and that it will lead to shifting tenant and investor preferences; Social: For us this means that we focus on human rights and work conditions.

22p quaivatxanh 01-12-2012 44 5   Download

Plants are a distinct kingdom of organisms that possess unique properties of reproduction, development, physiology, and adaptation. Plant diversity refers to the variety of plants that exist on the Earth. Plants, in order to survive, have to compete with other plants and organisms in an ecosystem. Over time, they have developed various characteristics to help them survive, which leads to plant diversity.

0p conquynho32 14-09-2012 42 6   Download