Tag: kawayan

Cement-Bonded Board from bamboo and corn

CBB ng FPRDI mula kawayan at mais

Isang uri ng cement-bonded board o CBB na maaaring makatulong sa problema ng pabahay sa bansa ang kasalukuyang pinag-aaralan ng Forest Products Research and Development In¬stitute ng Department of Science and Technology (FPRDI-DOST) .

Ito ay yari sa kinayas na kawayan at tangkay ng mais na hinaluan ng semento.

Ang CBB ay karaniwang gawa sa agro-forest waste materials tulad ng kinadkad na bunot, ipa, dayami at busil ng mais. Ito’y ginagamit bilang dingding, panloob na partisyon ng bahay, kabinet at kisame.
Kilala sa buong mundo ang CBB dahil bukod sa matibay ito laban sa anay at amag, hindi rin ito madaling masira ng apoy at tubig. Wala din itong kimikal tulad ng formaldehyde na karaniwang ginagamit na pandikit sa plywood kaya’t hindi ito nakasasama sa kalusugan ng tao at sa kapaligiran.

Kamakailan lamang ang FPRDI ay nakagawa ng CBB mula sa kawayan at tangkay ng mais. Ayon kay Dr. Dwight A. Eusebio, pinuno ng FPRDI Composite Products Section, katanggap-tanggap ang mga katangian ng bago nilang produkto. Pumasa ito sa pagsusuri ng static bending, nail head pull-through,at thickness swelling maging ang water absorption properties nito.

Tumutukoy ang static bending sa bigat na kayang dalhin ng CBB nang hindi ito masisira. Samantala, tinitingnan naman sa nail head pull-through test ang tibay ng isang CBB kapag hinugot ang isang pako mula dito. Mahalagang tingnan ang water absorption property kung gagamitin ang CBB na partisyon sa loob at la¬bas ng bahay. Sa thickness swelling test naman makikita kung mamamaga ang mga CBB kapag nababad sa tubig.

Dalawang uri ng kawayan na makikita sa buong Pilipinas ang ginamit nina Eusebio – ang bayog at kawayan tinik. Ang mga tangkay ng mais naman na karaniwang wala nang pakina¬bang sa mga magsasaka ay inihalo sa kinayas na kawayan.
Upang masubukan ang ginawa nilang CBB, bumuo sina Eusebio at isang building product manufacturer ng 24 na pirasong panel na may sukat na 2 X 8 piye para ikabit sa isang bahay sa Tandang Sora, Quezon City.

Para sa dagdag na impormasyon tungkol sa CBB, tumawag lamang sa (049) 536-2377, (049) 536-2586 o mag-email sa fprdi@dost. gov.ph. Ang FPRDI ay isang ahensiya sa ilalim ng Department of Science and Technology. Ito ay matatagpuan sa Narra Road, UPLB Forestry Campus, College Laguna.
Source: RapiDOST June 2010 by Paula Bianca Z. Ferrer S&T Media Service, FPRDI

How to Produce Kawayan Charcoal Briquettes?

How to Produce Kawayan Charcoal Briquettes?

To fully utilize the bamboo, another technology was generated that could help the standowners produce more income. Wastes from bamboo processing may be manufactured into charcoal briquettes. This could help reduce pressure on wood resource. It could also help mitigate carbon dioxide emission into the atmosphere.

The steps in marketing kawayan charcoal briquettes are:

  1. Collecting and Preparing the Raw Materials Continue reading “How to Produce Kawayan Charcoal Briquettes?”

Kawayan Technology part 3

How to Maintain Bamboo Stands?

  • Clean the bamboo clumps to facilitate growth development of new shoots and the production of good quality poles. Two ways of cleaning bamboo clumps.
  • Horse-shoe pattern – clean the clumps in such a way that the uncut culms will form a horse-shoe pattern.
  • Cross pattern – remove all the culms within the cross pattern.
  • Remove the spiny branches.
  • If rats abound in the area, apply rodenticides at the base of the clumps. Distribute the bait around the plantation.
  • Remove dry leaves and branches or anything that easily burns around the plantation to prevent fire Continue reading “Kawayan Technology part 3”

Kawayan Technology part 2

How to Prepare the Misting Bed?

  1. A misting bed is a ground bed where cuttings are being rooted. Make a misting bed under the trees and near a water source. It can either be square or rectangular depending on the quantity of cuttings to be propagated. If large quantity of planting materials is to be propagated, construct a 3 m x 5m misting bed.
  2. Use hollow blocks as borders and then fill the chamber with sand until the brim.

What are the Steps in Preparing Planting Materials?

  1. Select planting materials only from healthy clumps. Select 1-to-2 year old culms. The nodes must have well developed buds from the base to the top.
  2. Cut the selected culms from the clump. Do not remove the buds in the nodes.
  3. Cut the culms into one-node sections. Cut at 2-3 in below the node and 4-5 in above the node.
  4. Set the cuttings in the misting bed in slanting position. Expose the branch stub above the bed. This position enhances the emergence of shoots.
  5. Keep the misting bed moist to enhance the emergence of shoots and roots. Water the cutting by misting for 2 hours in the morning and 2 hours in the afternoon.
  6. A sprinkler can be used in the absence of mist sprayer. Water the cuttings twice in the morning and in the afternoon.
  7. After 15-25 days, transplant the rooted cuttings into 7 in x 7 in x 11 in plastic bag.
  8. Mix ordinary garden soil and sand at 1:1 ratio. Fill half of the plastic bag with the mixture and then place the rooted cuttings. Fill the remaining half of the plastic bag with soil mixture.
  9. Place the seedlings under the trees. In the absence of trees, provide a shade for the seedlings.
  10. After two months, transfer the seedlings into the open to harden the newly developed shoots. The seedlings can be transplanted into the field after 6-12 months.
  11. Water the seedlings and spray fungicide to protect and control the spread of disease.
  12. Fertilize each seedling with 20 g of 14-14-14 NPK.
  13. Cut all roots protruding from the plastic bag to prevent them from growing into the ground.
  14. Remove weeds that compete with the development of seedlings. Continue reading “Kawayan Technology part 2”