Production of chalk from asian green mussel (Perna viridis) shells /
Chavez, Kim R.
Production of chalk from asian green mussel (Perna viridis) shells / by Kim R. Chavez, Art Vincent G. Deri and Andrea K. Alonzo. - Indang, Cavite : Cavite State University- Main Campus, 2014. - xi, 52 pages : illustrations ; 28 cm.
Research Study (Science High School) Cavite State University
Includes bibliographical references.
Science High School, College of Education (CED) Science High School, College of Education (CED)
CHAVEZ, KIM R., DERI, ART VINCENT G., ALONZO, FRANCES ANDREA KProduction of Chalk from Asian Green Mussel (Perna viridis) Shells. Research Study (General Science Curriculum), Science High School, College of Education, Cavite State University, Indang, Cavite. April 2014. Adviser: Prof. Momeda A. Callao.
Chalk using Asian green mussel shells was conducted at Alonzo’s Residence, Binambangan Street., Indang, Cavite from December 2013 to January 2014. The objectives of the study were to: (1)determine the physical properties of produced chalk using Asian green mussel (Perna viridis) shells in terms of: texture, brittleness,
compactness, color and writing performance;(2)determine which treatment will produce the best chalk; (3)determine the general acceptability of the produced chalk and (4)determine how the produced chalk compares with the commercial chalk in terms of: texture, color, and writing performance. The needed materials were gathered in Indang, Cavite.
The shells were bleached in a bleaching solution of NaOC] and air dried for one week. After that, the shells were crushed and sieved to obtain the finest powder. The molders were prepared by placing wax paper inside the straws that were cut into a standard size of a chalk. One end of the straw was taped using adhesive tape to hold the mixture. The different treatments were: Tp (commercial chalk), T; (0% of CaSO, + 90% of Asian green mussel shells + 10% of binder), T (30% of CaSO, + 60% of Asian green mussel shells + 10% of binder), and T3 (45% of CaSO, + 45% of Asian green mussel shells + 10% of binder).
The physical properties of the produced chalk under T1, To, and T3 were evaluated. Based on the results, T got the highest rating in all the properties which are texture, brittleness, compactness, color, writing performance. It was followed by T3 and T), respectively. |
After the evaluation, T, with a combination of 30% CaSO, + 60% Asian green mussel shells + 10% binder produced the best quality chalk.
In terms of general acceptability, T> is the most acceptable, next is T3, and the least acceptable is T}.Based on the results of comparing Tp and T,, To was slightly better than T, in texture, color, and writing performance.
Chalk--Production
552.58 / C39 2014
Production of chalk from asian green mussel (Perna viridis) shells / by Kim R. Chavez, Art Vincent G. Deri and Andrea K. Alonzo. - Indang, Cavite : Cavite State University- Main Campus, 2014. - xi, 52 pages : illustrations ; 28 cm.
Research Study (Science High School) Cavite State University
Includes bibliographical references.
Science High School, College of Education (CED) Science High School, College of Education (CED)
CHAVEZ, KIM R., DERI, ART VINCENT G., ALONZO, FRANCES ANDREA KProduction of Chalk from Asian Green Mussel (Perna viridis) Shells. Research Study (General Science Curriculum), Science High School, College of Education, Cavite State University, Indang, Cavite. April 2014. Adviser: Prof. Momeda A. Callao.
Chalk using Asian green mussel shells was conducted at Alonzo’s Residence, Binambangan Street., Indang, Cavite from December 2013 to January 2014. The objectives of the study were to: (1)determine the physical properties of produced chalk using Asian green mussel (Perna viridis) shells in terms of: texture, brittleness,
compactness, color and writing performance;(2)determine which treatment will produce the best chalk; (3)determine the general acceptability of the produced chalk and (4)determine how the produced chalk compares with the commercial chalk in terms of: texture, color, and writing performance. The needed materials were gathered in Indang, Cavite.
The shells were bleached in a bleaching solution of NaOC] and air dried for one week. After that, the shells were crushed and sieved to obtain the finest powder. The molders were prepared by placing wax paper inside the straws that were cut into a standard size of a chalk. One end of the straw was taped using adhesive tape to hold the mixture. The different treatments were: Tp (commercial chalk), T; (0% of CaSO, + 90% of Asian green mussel shells + 10% of binder), T (30% of CaSO, + 60% of Asian green mussel shells + 10% of binder), and T3 (45% of CaSO, + 45% of Asian green mussel shells + 10% of binder).
The physical properties of the produced chalk under T1, To, and T3 were evaluated. Based on the results, T got the highest rating in all the properties which are texture, brittleness, compactness, color, writing performance. It was followed by T3 and T), respectively. |
After the evaluation, T, with a combination of 30% CaSO, + 60% Asian green mussel shells + 10% binder produced the best quality chalk.
In terms of general acceptability, T> is the most acceptable, next is T3, and the least acceptable is T}.Based on the results of comparing Tp and T,, To was slightly better than T, in texture, color, and writing performance.
Chalk--Production
552.58 / C39 2014