concrete additives and effects

Concrete Accelerators

Accelerating admixtures are added to concrete either to increase the rate of early strength development or to shorten the time of setting, or both. Chemical compositions of accelerators include some of inorganic compounds such as soluble chlorides, carbonates, silicates, fluosilicates, and some organic compounds such as triethanolamine. Get price

additives and treatments for concrete and mortars

Effects of Substances on Concrete and Guide to Control of Concrete Mixtures(Kosmatka et al. 2002) for further information. Integral Waterproofing Additives for Concrete and Plasters Concrete placement should be followed by proper finishing, compaction and Get price

Overview of antimicrobial agent for sewarage concrete

The effects of antimicrobial concrete is introduced in the Handbook for preventing the corrosion of sewer concrete pipes (draft) compiled by the Japan Sewage Works Association, which is a Public Interest Incorporated Association in Japan, and antimicrobial Get price

Effects of Substances on Concrete and Guide to Protective

Effects of Substances on Concrete and Guide to Protective Treatments Generally there are two ways to mitigate chemical attack, (1) choose the right concrete composition to make it less permeable or isolate it from the environment by using a suitable coating Get price

Strength of Concrete Using Different Types of Additives

Journal Of Engineering And Development, Vol. 15, No.4, Des 2011 ISSN 1813- 7822 30 Strength of Concrete Using Different Types of Additives Ali Hussain Ali Assistant professor Technical college / Mosul Abstract: In this investigation, conventional concrete Get price

Concrete Surface Treatments and Additives

Concrete Additives / Admixes / Treatments There are a variety of concrete additives and surface treatments being used in the construction industry. 1. additives (such as plasticizers, dispersants, thinners, anticorrosives, etc), 2. admixes (latexes, silicates Get price

Effect of Mineral Additives on Some of Durability Parameters of Concrete

concrete ring (width = 7 cm; thickness = 7 cm) was hindered by a steel ring (inner radius = 8.5 cm; outer radius = 11 cm). A 2 cm notch was placed on the steel ring to promote cracking. The test to analyse the effects of leaching and acid attack on concrete Get price

MasterFinish concrete additives

The MasterFinish product family imparts a wide range of concrete additives and form release agents to achieve an outstanding surface finish. What makes MasterFinish a unique solution? When applied to most forms and form liners, these unique admixtures are formulated to enhance the appearance of pre-cast, pre-stressed and poured-in-place concrete by allowing easy separation from the concrete Get price

Enhancing the durability of concrete made of concrete

2014/4/1The first experiments with the additives of chemicals into concrete made of concrete recyclate in CR were carried out e.g. by Klimesova et al. (2001), a positive influence of mineral admixtures on the performance of concrete from concrete recyclate was proved by Get price

Cement Additives

This air-entraining mixture reduces the segregation and bleeding effects in mortar and concrete, and provides a more durable mixture. Biplas – Dark Biplas - Dark is a specially formulated liquid mortar admixture and plasticiser, which improves workability and provides a smoother finish for plaster and cement render mixes. Get price

Effects of Additives on Properties of Rapid

2012/1/1Title: Effects of Additives on Properties of Rapid-Setting Controlled Low-Strength Material Mixtures Author(s): Lianxiang Du, Kevin J. Folliard, and Thanos Drimalas Publication: Materials Journal Volume: 109 Issue: 1 Appears on pages(s): 21-30 Keywords: additives; aluminum sulfate; controlled low-strength material (CLSM); fly ash; gypsum; hemihydrates; rapid-setting CLSM Get price

Concrete Technology Notes pdf

Here you can download the free lecture Notes of Concrete Technology Pdf Notes (CT Pdf Notes) with multiple file links to download. The Concrete Technology Notes Pdf (CT Notes Pdf) book starts with the topics covering Portland cement, Mineral and chemical Get price

Evaluation of Effects of Deicing Additives on Properties of

deicing additives in Europe, researchers have conducted con siderable experimental work and field trials using Verglimit and PlusRide in the United States (1-3). Effects of deicing additives on mixture properties are not well established, however, because Get price

Admixtures for Concrete

Admixtures are those ingredients in concrete other than portland cement, water, and aggre-gates that are added to the mixture immediately before or during mixing (Fig. 6-1). Admixtures can be classified by function as follows: 1. Air-entraining admixtures 2. Water Get price

Cement Additives

This air-entraining mixture reduces the segregation and bleeding effects in mortar and concrete, and provides a more durable mixture. Biplas – Dark Biplas - Dark is a specially formulated liquid mortar admixture and plasticiser, which improves workability and provides a smoother finish for plaster and cement render mixes. Get price

Effect of Mineral Additives on Some of Durability Parameters of Concrete

concrete ring (width = 7 cm; thickness = 7 cm) was hindered by a steel ring (inner radius = 8.5 cm; outer radius = 11 cm). A 2 cm notch was placed on the steel ring to promote cracking. The test to analyse the effects of leaching and acid attack on concrete Get price

Title: An Investigation of the Effects of Three Warm Mix Asphalt Additives

2011/5/19WMA additives had significant effects on DSR results at 30 all three binder age-conditioning levels investigated, which suggests that the WMA modifiers may have a 31 significant effect on rutting and fatigue cracking resistance. Get price

Types of Chemical Admixtures

Different types of chemical admixtures with information on additives that can be added to concete to control air content, water content, corrosion, shrinkage control, alkali-silica reactivity, and coloring. Types of Admixtures Concrete admixtures are used to improve Get price

Cement Additives

This air-entraining mixture reduces the segregation and bleeding effects in mortar and concrete, and provides a more durable mixture. Biplas – Dark Biplas - Dark is a specially formulated liquid mortar admixture and plasticiser, which improves workability and provides a smoother finish for plaster and cement render mixes. Get price

How to make concrete: PART 2b

2014/1/31Following on from the previous blog, which explored the key materials that form concrete, this blog explores additives and admixtures. These are materials and chemicals that come in powder and liquid form. They are added to a concrete mix to alter its properties Get price

Effect of High Temperature in Concrete for Different

In this study, the change of the effect of high temperature in concrete by the types of mineral additives was examined experimentally. For this purpose, CEM I 42,5 R cement was used together with different minerals such as Barite, Diatomite, Silica fume, F class Fly ash that are added in a substituted manner at the rates of 10%, 20%, 30% and 40% by volume. Dry unit weights, underwater weights Get price

Effects of blast induced vibrations on the fresh concrete

Effects of blast induced vibrations on the fresh concrete lining of a shaft During shaft excavation, blast induced vibrations can cause micro-cracks in the fresh concrete lining and decrease its strength. The traditional method to reduce the vibration effect is to control Get price