Periwinkle shell ash as a filler material to improve the performance of the asphaltic concrete is considered. In this study, the mechanistic properties of asphalt concrete mixes modified with Periwinkle Shell Ash as a replacement for mineral filler were evaluated at 20 percent. Bitumen content were evaluated and six
Periwinkle shell ash as a filler material to improve the performance of the asphaltic concrete is considered. In this study, the mechanistic properties of asphalt concrete mixes modified with Periwinkle Shell Ash as a replacement for mineral filler were evaluated at 20 percent. Bitumen content were evaluated and six…. Expand.
The results of the research work shows that concrete containing lateritic sand and periwinkle [2] A. P. Adewuyi and, T. Adegoke, "Exploratory study of shell as partial replacement up to 20% develop a periwinkle shells as coarse aggregates in concrete higher compressive strength for the curing ages of 7, works",.ARPN ...
Periwinkle shell Ash, Sulphates, Blended cement concrete. and falls within zone 2 as shown in Figure 1; while the 1. NTRODUCTIONI The compressive strength of concrete is considered one of the most important properties in the hardened state, and the design of concrete structures is based primarily to resist compressive stresses.
resistant of concrete with periwinkle shells as aggregate. The strength characteristics of concrete containing periwinkle shells have been indicated as adequate for construction works [3]. Normal concrete is widely used for construction works including buildings and could accidentally be exposed to effects of fire/heat anytime. Likewise, light-
structural engineers. Recently, periwinkle shells have been introduced as one of the substitute materials for coarse aggregates in concrete production [1–6]. Periwinkle shells are abundant in the swampy mud and river banks of the Niger Delta area of Nigeria. The strength property of concrete is a function of the
sulphuric acid for concrete made from cement blended PSA can lead to the development of much higher-quality acid resistant cementitious material. 2. MATERIALS AND METHODS 2.1 Materials The periwinkle shells used for this study were obtained from a dump site at Ikot Ebido Oku, Uyo, Akwa Ibom State, Nigeria. The periwinkle shells was washed, air ...
The study examined the compressive strength of periwinkle shell ash (PSA) blended cement concrete in magnesium sulphate medium. Specimens were prepared from designed characteristics strength of 25 MPa. The cement replacement with PSA ranged between 0 and 40% by volume. A total of 180 cube specimens were cast and cured in water. At 28 days curing, 45 …
Plenty of seashell types are incorporated into concrete mixes, these include cockle or blood clam, oyster, periwinkle, mussels, scallops, crepidula, and conk shells. Seashell waste ashes have also been used to produce self-consolidated concrete and pervious concrete.
lateritic soil and periwinkle shell in concrete production and in sandcrete block production. Hence, this study is aimed at determining the compressive strength of sandcrete block made with sand, periwinkle shell laterite and cement. It is believed that this work will contribute to the existing data
12%The effects of periwinkle shell, curing duration and methods of curing on the compressive strength of concrete using response surface methodology were evaluated. However, the periwinkle shells were added to the concrete at 5%, 10% and 15% dosage by weight as partial replacement to the coarse aggregate. The concrete were cast at 0.5 w/c ratio and cured between 7 …
The effects of periwinkle shell, curing duration and methods of curing on the compressive strength of concrete using response surface methodology were evaluated. However, the periwinkle shells were added to the concrete at 5%, 10% and 15% dosage by weight as partial replacement to the coarse aggregate. The concrete were cast at 0.5 w/c ratio and cured between 7 …
periwinkle shells as alternative material to granite chips as coarse aggregate in concrete and concluded that the use of periwinkle shells for concrete would result in low cost housing delivery especially in the riverine areas where they are found as waste. Emiero and Oyedepo (2012) worked on the Investigation on
ii the effect of periwinkle shell ash and dust on the compressive strength of concrete by mark onimisi zuberu b. eng (atbu), 2011 p13egcv8014 a thesis submitted to the school of postgraduate studies
Download this complete Project material titled; The Effect Of Periwinkle Shell Ash And Dust On The Compressive Strength Of Concrete with abstract, chapters 1-5, references, and questionnaire. Preview Abstract or chapter one below Format: PDF and MS Word (DOC) pages = 65 ₦ 3,000
3 suggested that, the periwinkle shell particles can be used as reinforcing material. Olutoge et al. [13], studied the suitability of periwinkle shell ash as partial replacement for ordinary Portland cement in concrete, analyzed the chemical content of periwinkle shell ash and
varying the percentage of periwinkles shells in the concrete from 0% - periwinkle shells. From their findings the characteristics strength of the 28 days concrete produced at periwinkle shells ranges from 11.77N/mm 2to 15.65N/mm . So much efforts by researchers have been spent on the possible use of the shell as coarse aggregate but ...
periwinkle shell as partial replacement for river gravel (coarse aggregate) in concrete. The study discovered that concrete cubes with periwinkle shells alone as coarse aggregate were lighter and of lower compressive strengths compared to those with other …
Keywords—Concrete, Periwinkle shell ash, Setting Time, Harsh Environmental Conditions I INTRODUCTION Increase in the world's population has placed a great demand on existing facilities such as housing, transportation, waste disposal etc which either requires maintenance or construction of …
periwinkle shells as partial or in concrete works. Physical and mechanical properties of periwinkle shell and crushed granite were determined and compared. A total of 300 concrete cubes of size 150 × 150 ×150 mm3 with different percentages by weight of crushed granite to periwinkle shells as coarse aggregate in the ...
as cement supplement in concrete is Periwinkle Shell Ash (PSA). Periwinkle Shell Ash is obtained by burning periwinkle shell which is the by-product of Periwinkle. Periwinkle is described as any small greenish marine snail from the class of gastropod, the largest of the seven classes in the phylum mollusc (Okon,1987; Olorunoje and Olalusi, 2003
2.2 Mix Design for Geopolymer Concrete The mix design for the periwinkle shell ash based geopolymer concrete was reached in accordance with the miodified guidelines for geopolymer mix proportions (Anutadha et al.,2012). Hence, the mix ratio for geopolymer solid, fine aggregates and coarse aggregates considered in this study was
that the density of the concrete decreased with increase in the percentage of periwinkle shells, from 2466.67 Kg/m for 25% periwinkle shell replacement at a mix ratio of 1: 1.5: 3 to 2103.33 Kg/m3 for 75% periwinkle shell replacement at a mix ratio of 1: 2.5: 3. Values of 28-day compressive strength ranged from 24.15 N/mm2
The periwinkle shell ash was mixed in concrete at various percentages replacement of 0 %( control), 10%, 20%, 30% and 40% by weight of cement. Concrete beams, cubes and cylindrical samples were produced using the partial replacement levels and cured for …
Periwinkle shell has the typical values for surface moisture content recommended by American Concrete Institute (1999), although the 8.32% obtained by …
The potential of periwinkle shell as coarse aggregate for concrete was studied in this paper. The properties of concrete made with periwinkle shell as coarse aggregate were examined. Test conducted on the concrete was compressive strength test. Prescribed mix designs of 1:1:2, 1:2:3, 1:4:6, 1:2:4 and 1:3:5 were used to produce concrete cubes used for testing.
The use of periwinkle shells as mixing ingredients in concrete materials can lower the dependency on natural aggregate supply. This paper discusses the properties of periwinkle shell and method of treatment prior to their usage as a cement and coarse aggregate as well as the mechanical properties of concrete produced using this seashell waste.
Keywords: Cement, Concrete, Periwinkle Shell Ash, Pozzolans. 1. INTRODUCTION Periwinkle shell is a waste product generated from the consumption of a small greenish-blue marine snail (periwinkle), housed in a V shaped spiral shell, found in many coastal communities within Nigeria and word-wide is a very strong, hard and brittle material. ...
Osarenmwinda and Awaro (2009) researched the potential of periwinkle shell as coarse aggregate for concrete. The results showed that concretes produced with 1:1:2, 1:2:3 and 1:2:4 mixes indicated ...
Concrete cubes with periwinkle shells alone as coarse aggregate were lighter and of lower compressive strengths compared to those with other periwinkle: gravel properties. The 28-day density and compressive strength of periwinkle were 1944 kg/m3 and 13.05 N/mm2 respectively.
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نشانی: شماره 1688، جاده شرقی گاوک، منطقه جدید پودونگ، شانگهای، چین.
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