Nhwehwɛmu a wɔyɛe wɔ Structural Sealant Implementation Standards ho

Structural sealants yɛ nneɛma atitiriw a wɔde bom na wɔde sealing wɔ adan, abɔntenban, ne nnwuma afoforo mu. Wɔn adwumayɛ nya adan no ahobammɔ ne sɛnea ɛtra hɔ kyɛ so nkɛntɛnso tẽẽ. Sɛnea ɛbɛyɛ a wɔbɛhwɛ sɛ nneɛma no yɛ papa na wotumi de ho to so sɛ wɔde di dwuma no, wɔde gyinapɛn a emu yɛ den a wɔde bedi dwuma asi hɔ wɔ ɔman no mu ne amanaman ntam nyinaa, a ɛfa nneɛma no su, akwan a wɔfa so sɔ hwɛ, ne dwumadie ho nkyerɛkyerɛmu ho.

 

Wɔ China no, gyinapɛn titiriw a wɔde di dwuma ma structure sealants ne GB 16776-2005, "Silicone Structural Sealant for Construction." Saa gyinapɛn yi kyerɛ nkyekyɛmu, mfiridwuma mu ahwehwɛdeɛ, sɔhwɛ akwan, ne nhwehwɛmu mmara a ɛfa silicone structural sealants ho, na ɛhwehwɛ pefee sɛ nsɛnkyerɛnneɛ titire te sɛ tensile bond ahoɔden, displacement tumi, ne onyin a ɛko tia no hyia gyinapɛn a wɔakyerɛ. Sɛ nhwɛso no, gyinapɛn no kyerɛ sɛ ɛsɛ sɛ silicone structural sealants nya nnafua 28 tensile bond ahoɔden a ɛnsua nsen 0.6 MPa na ɛsɛ sɛ ɛtwam wɔ sɔhwɛ ahorow a ɛma ɛyɛ den te sɛ ɔhyew a ɛyɛ onyin ne UV a ɛda adi mu. Bio nso, GB/T 14683-2017, "Silicone Building Sealant," fa sealants a ɛnyɛ structurel dwumadie ho na ɛboa GB 16776.

Wɔ amanaman ntam no, ASTM C1184, "Gyinapɛn Nkyerɛkyerɛmu ma Structural Silicone Sealant," ne ETAG 002, "Mfiridwuma ho Mpene akwankyerɛ ma Structural Sealant Assembly Systems," yɛ nhwɛsode gyinapɛn ahorow a wogye tom kɛse. ASTM C1184 de ahwehwɛdeɛ a ɛkɔ akyiri si hɔ ma modulus, elongation, ne adhesion a ɛwɔ silicone sealants mu, berɛ a ETAG 002 twe adwene si ahobanbɔ nhwehwɛmu a wɔyɛ wɔ curtain wall assembly systems nyinaa so, na ɛsi bere tenten-bereɛ mu adwumayɛ ho adansedie so dua.

Ɛnyɛ sɛ gyinapɛn ahorow yi a wɔde bedi dwuma katee no ma wɔhwɛ ma nneɛma a wɔde hyɛ dan mu no yɛ papa bere nyinaa nko, na mmom ɛma wonya nnyinaso a wotumi de ho to so ma mfiridwuma ho nhyehyɛe nso. Daakye, ɛnam nkɔsoɔ a ɛbɛba wɔ nneɛma ho nyansahu mu nti, wɔbɛkɔ so ayɛ gyinapɛn a ɛfata no yie na ama wɔadi dwumadie a ɛwɔ adwumayɛ a ɛkorɔn ne nneɛma a atwa yɛn ho ahyia ho ahiadeɛ ho dwuma.