aggregate replacing in concrete in ppt

Aggregates of Concrete

2017-3-2 · Aggregate Classification : ShapeAggregate Classification : Shape • The shape of aggregates is an important characteristicThe shape of aggregates is an important characteristic since it affects the workability of concrete.since it affects the workability of concrete…

Use of Quarry Dust to Replace Sand in Concrete – An ...

2021-6-4 · strength of concrete when replacing sand by quarry dust from 0% to in steps of 10%. M20 and M25 grades of concrete were taken for study keeping a constant slump of 60mm. The compressive strength of concrete cubes at the age of 7 and 28 days were obtained at room temperature. Also the temperature

Crumb Rubber as Partial Replacement of Coarse …

replacement of coarse aggregate in the asphaltic concrete mix with crumb rubber at 0, 2, 4, 6, 8 and 10% by weight of the total mix. The samples were subjected to Marshall stability test and the values of stability, flow, air void (AV), voids in the mineral aggregate (VMA), and voids filled with bitumen (VFB) were obtained.

Preplaced Aggregate Concrete (PAC)

Figure 1(b) Preplaced Aggregate Concrete. For the purpose of repair method using preplaced aggregate concrete, grout typically consists of sand, cement, pozzolana, plasticizer / superplasticizer and air entraining agents (for anticipated freeze and …

Partial Replacement of Cement With Marble Powder in ...

KEYWORDS: Cement (53 grade), Marble powder, Fine aggregate (M-sand), Coarse aggregate (20mm size). 1 TRODUCTION: This paper aims to focus on the possibilities of using waste materials from different manufacturing activities in the preparation of innovative mortar and concrete…

EXPERIMENTAL STUDY ON CONCRETE BY PARTIAL …

2017-5-2 · aggregate in high-strength concrete is technically possible and useful. Wei wu et al (2010) investigated the mechanical properties of high strength concrete replacing fine aggregate with copper slag. Micro silica was used to supplement the cementitious content in the mix for high strength requirement.

ppt on replacement of fine aggregate by stone dust in …

ppt on quarry dust . ppt on quarry dust as fine aggregate in concrete. ... ppt on replacement of stone dust in concrete and mortar . Tags: Replacement, Stone, Dust, Concrete.

Partial Replacement of Coarse Aggregate with Broken ...

2018-8-12 · source of coarse aggregate in concrete. The crushed tile had a lower density and a much higher water absorption value compared to those of natural crushed stones. The resulting concrete made with crushed tile as the coarse aggregate had a lower density and higher compressive (+2%), tensile (+70%) and flexural (+29%) strengths.

aggregate driveway repair in 5 simple steps

2021-8-14 · 4. Time to mix the concrete: Manufacturers will provide you with cement mixing directions to repair exposed aggregate driveways. Once it is done, use your shovel to pour concrete into those exposed areas. The damaged areas must have enough cement mixture. After patching, take off the tape, used for covering decorative portions.5.

Utilization of Stone Dust as Fine Aggregate Replacement …

2015-4-30 · aggregate in concrete. To accomplish this specimen were cast for different replacement level at an interval of 10 percent to determine workability and compressive strength of concrete at different level of fine aggregate with stone dust. Results show that optimum replacement with stone dust is 60 percent based on compressive ...

Replacement of Cement in Concrete

2014-1-21 · Replacement of Cement in Concrete P. Vipul Naidu1 and Pawan Kumar Pandey2 1Civil-SOT, Pandit Deendayal Petroleum University, Raysan, Gandhinagar, INDIA. 2Engineer, DMRC, Sector-18, Rohini, New Delhi, INDIA. Abstract Cement is a binding material, a substance that sets and hardens independently, and can bind other materials together.

Lectures No. 09 & 10

2013-1-8 · Control the access of water to concrete. Replacing 25% - 30% of the reactive sand gravel aggregate with crushed limestone (known as limestone sweetening). Alkali silica reaction (ASR) Utilization of silica fume, fly ash, and blast furnace slag as partial replacement of cement will reduce the expansion as shown in Figure 5-23.

RECYCLED CONCRETE AGGREGATE: INFLUENCE OF …

2018-1-1 · Recycled concrete aggregate (RCA) is a construction material, which is being used in the Canadian construction industry more frequently than it was in the past. The environmental benefits associated with RCA use, such as reduced landfilling and natural aggregate (NA) quarrying, have been identified by industry and government agencies. ...

STUDY OF PARTIAL REPLACEMENT OF FINE AGGREGATE …

2018-3-15 · normal concrete quality and strength in we can use it as the replacement for the fine aggregate[1-4] ntinues r esearch efforts have established concrete as a versatile ma terial, concrete required for extensive construction activi ty can be made available, since all the ingredients of concre te are of geological origin.

Recycled Concrete Aggregate

Files > Download Recycled Concrete Aggregate - PowerPoint Presentation - CivilEngineeringBible (FREE!) One of the major challenges of our present society is the protection of environment. Some of the important elements in this respect are the reduction of the consumption of energy and natural raw materials and consumption of waste materials.

(PPT) CIVIL PROJECT PPT RECYCLED AGGREGATE …

RCA is feasible in concrete pavements, if performance comparable to materials can be expected f J-4 E OF RECYCLED AGGREGATE CONCRETE AUTHORS: OBJECTIVE: CONCLUSION: Mr. Tushar R 1. To find out the % use 1 e of recycled aggregate up to feasible for construction. 30% does not affect the functional requirements of the structure as 2.

RECYCLED TIRES AS COARSE AGGREGATE IN CONCRETE

focusing on tire chips as coarse aggregate replacement. One concrete control mixture was designed, which well exceeds CDOT Class P concrete requirements. The coarse aggregate component of the mixture was replaced in , 50%, …

Replacement of fine aggregate with plastic in concrete

2018-5-14 · In this study, M40 cement concrete is considered in which the recycled plastic waste is used as the replacement of fine aggregate in the concrete. Concrete cubes were cast taking 10%, 20%, 30 %, 40% & 50% of plastic as partial replacement of fine aggregate and tested for 7 & 28 days of compressive strength of concrete.

Alkali-Aggregate Reaction (AAR) of Concrete Structures

2013-6-13 · alkali content of concrete, use of low alkali cement, include PFA, GGBS, etc. M2: Avoid the presence of a critical amount of reactive silica, e.g. identify non-reactive aggregate M3: reduce the access of moisture and maintain the concrete in a sufficiently dry state, e.g. use external cladding or tanking

Recycle of E-Waste in Concrete

2020-4-1 · concrete industry to use non-biodegradable components of E-waste as a partial replacement of the coarse or fine aggregates. In the recent decades, the efforts have been made to use electronic waste from various sources in concrete for the replacement of cement, fine and coarse aggregate. The use of these materials in concrete come from

EFFECT OF REPLACING FINE AGGREGATE WITH BOTTOM …

2019-4-21 · EFFECT OF REPLACING FINE AGGREGATE WITH BOTTOM ASH IN M40 GRADE OF CONCRETE WITH OPC-53S CEMENT P.Ranapratap1, K.Padmanabham2 1M.Tech Student, Department of Civil Engineering, GVP College of engineering, Andhra Pradesh, India 2Associate Professor, Department of Civil Engineering, GVP College of Engineering, Andhra Pradesh …

Use of Blast Furnace Slag Aggregate in Concrete

2016-9-9 · types of concrete mixes, i.e., one comprising blast furnace slag and the other comprising granite stone as coarse aggregates. The compressive strength of BFS aggregate concrete is higher than that of the stone aggregate concrete at the age of 90 days. 1.3.Slag- Manufacturing and Types In the production of iron, iron ore, iron scrap, and fluxes

Use of copper slag as a replacement for fine aggregate …

2014-5-17 · Aggregate is the main constituent of concrete, since it occupies more than 70% of the concrete matrix. In many countries there is a scarcity of natural aggregate that is suitable for construction, whereas in other countries the consumption of aggregate has been increased, in recent years, due to the increase in the construction industry.

Using Shredded Tires as an Aggregate in Concrete

2012-9-12 · Keywords: Concrete compressive strength, aggregates, shredded tires. 1. Introduction Concrete is a composite material composed of coarse granular material (the aggregate or filler) embedded in a hard matrix of material (the cement or binder) that fills the space between the aggregate particles and glues them together.

What is a Concrete Aggregate? (with pictures)

Concrete aggregate is a material which is mixed with cement to create concrete which is hard, strong, and long-lasting. There are a number of different types of concrete aggregate, with contractors selecting their aggregate on the basis of the type of job being performed. If you live in an area with concrete …