بيت /coconut aggregates for concrete
essential to find out a new source of aggregates. In the present work, coconut shell is selected as a partial replacement of coarse aggregate in concrete. Coconut shell is a waste material and the amount of these wastes is increasing day by day. Usage of these as aggregates will reduce its presence as a waste material from earth.
الحصول على السعر
The best aggregates to use for strength are crushed stone or crushed gravel. Crushed aggregate have irregular, angular particles that tend to interlock when compacted or consolidated. The crushed stone or crushed gravel aggregate make the asphalt or concrete mix somewhat difficult to place. To improve the workability, many mixes
الحصول على السعر
aggregate for concrete in Sri Lanka. The coconut shell is a natural material that is available abundantly in Sri Lanka. Waste, generated by industrial and agricultural processes, has created disposal and management problems that pose serious issues of environmental pollution. In .
الحصول على السعر
For coconut shell aggregate to be used efficiently for construction purposes, it is imperative to investigateitsproperties. Therefore, this study examined the effect of coconut shell as fine and coarse aggregate replacement on the behavior of concrete with respect to some vital properties. The coconut shell concrete was designed for
الحصول على السعر
Aggregates are a component of composite materials such as concrete and asphalt concrete; the aggregate serves as reinforcement to add strength to the overall composite material. Coarse aggregate of size 20mm is sieved and used. Coconut Shell Ash CSA Properties and Strength Analysis Coconut shell is one of the most important natural ...
الحصول على السعر
has potential as lightweight aggregate in concrete. Also using the combination of coconut shell and grained palm kernel shell as aggregate in concrete can reduce the material cost in construction because of the low cost and abundant agricultural waste. The effect of aggregate content to .
الحصول على السعر
Abrasive blastingIt's also possible to expose the aggregate after the concrete has set and hardened by using abrasive blasting (either sandblasting or shotblasting). The disadvantage of abrasive blasting is that it can fracture the aggregate and dull its appearance.
الحصول على السعر
Performance of Coconut Shell as Coarse Aggregate in Concrete: A . use of waste coconut shell for concrete production. Key words: coconut shell, concrete, coarse aggregate, compressive strength, waste disposal. 1. INTRODUCTION. Concrete is a composite material which composed of aggregates.
الحصول على السعر
By complete replacement of coarse aggregate by coconut shell the densities of concrete gets reduced. By introducing coconut shell a light weight concrete can be achieved. Coconut shells are economic since it is an agricultural waste. By using coconut shell as aggregate in concrete a proper method for reducing natural wastages
الحصول على السعر
a substitute for conventional coarse aggregates. coconut shell concrete can be classified under structural Keywords—Coconut shells, coarse aggregate replacement, light weight aggregate concrete. I. INTRODUCTION Lightweight aggregate concrete (LWAC) is an .
الحصول على السعر
waste bricks, etc.) Industrial. Fine and coarse aggregates, concrete, bricks, blocks, powder. It contains mainly aluminosilicate and ferriferrous glassy spherical particles (about 60 – 80%) and irregularly . from oil palm fruit, both husks and shells are burnt in boiler to . .
الحصول على السعر
2. Coconut shell as coarse aggregate The concrete obtained using Coconut Shell aggregates satisfies the minimum necessities of concrete. Coconut Shell concrete has superior workability because of the smooth surface on one side of the shells. The impact resistance of Coconut Shell concrete is high when compared with conventional concrete.
الحصول على السعر
Coconut shell aggregate abrasion value The coconut shell abrasion value ranges between to percent as shown in Table of chapter 3. While the average abrasion value is % this is far less than 30%. Hence the coconut shell aggregate is a suitable material for construction as it satisfied the abrasion provision in the code. The implication of this result is that coconut ...
الحصول على السعر
of this study is to show that the replacement of aggregates in concrete by coconut shells and waste glass leads to economy in the concrete utilization sector. The use of such waste materials in concrete can be an important step towards sustainability of the construction industry by ensuring a scenario having less environmental impacts.
الحصول على السعر
The materials used for concrete for this study were portland cement, sand, granite and coconut shells. Portland cement of class, manufactured by Ghana Cement Works at Takoradi in the Western Region of Ghana and conforming to [15] was used. Crushed granite of nominal size 20mm was used as coarse aggregate.
الحصول على السعر
aggregate with coconut shell to produce lightweight concrete. Coconut shell exhibits more resistance against crushing, impact and abrasion, compared to crushed granite aggregate. Coconut shell can be grouped under lightweight aggregate. There is no need to treat the coconut shell before use as an aggregate except for water absorption.
الحصول على السعر
Mar 01, 2006· The results also indicated cost reduction of 30% and 42% for concrete produced from coconut shells and palm kernel shells, respectively. Considering the strength/economy ratio, it was concluded that coconut shells were more suitable than palm kernel shells when used as substitute for conventional aggregates in concrete production.
الحصول على السعر
Concrete cylinder specimens incorporating different percentage replacement of coarse aggregates using coconut shells with rebar were constructed and performed pullout testing to evaluate the bond behavior of concrete containing natural stone chips and crushed coconut shells as a partial replacement of coarse aggregates.
الحصول على السعر
examples of replacing aggregates in concrete. Coconut shell is categorized as light weight aggregate. The coconut shell when dried contains cellulose, lignin, pentosans and ash in varying percentage. In Asia, the construction industry is yet to realize the advantages of light weight concrete in high rise buildings.
الحصول على السعر
coconut shell as coarse aggregate. The concrete grade of M25 mix, designed as per Indian standards (IS 10262:2009) is used in this study to determine the compression strength of cube and split tensile strength of cylinder after 7 days, 14 days and 28 days. The Indian standard specifies
الحصول على السعر
M20 Concrete is produced by 0%, 10%, 20%, 30% replacement of coarse aggregate by coconut shell. There is no need to treat the coconut shell before use as an aggregate except for water absorption. No bond failure was observed, confirming that there was adequate bonding between the coconut shell aggregate concrete and the steel bars.
الحصول على السعر
Sep 15, 2017· An experimental investigation was carried out to study the durability properties of Coconut Shell (CS) aggregate concrete. Effect of mineral admixtures such as fly ash and ground granulated blast furnace slag (GGBFS) as partial replacement of cement on durability properties of CS aggregate concrete was also verified.
الحصول على السعر
Stains colors or discoloration on concrete surfaces: this article provides a catalog of types of stains found on concrete surfaces: walls, floors, ceilings, including unwanted stains from various causes deliberate concrete coloring processes, stains, or acid treatments. Methos for removing unwanted discoloration or stains from concrete.
الحصول على السعر
Concrete made from coconut shell waste as coarse aggregate will be studied for compressive strength, tensile strength and flexural strength. the percentage replacement will be 0%, 10%, 20% and 30% with natural coarse aggregates and replacement of 10% various size of coconut shell in concrete. the
الحصول على السعرCopyright ©2000-2023 TPCrusher CO.,LTD. خريطة الموقع
WhatsApp24 ساعة عبر الإنترنت
المحادثة على الإنترنت 24 ساعة عبر الإنترنت
المحادثة على الإنترنت