Ndị isi ụdị nke asphalt ihe ngwakọta

Ọkọlọtọ mejupụtara nke asphalt ihe dị ka ndị a: nkume a gwepịara egwepịa, ájá (egwepịara ma ọ bụ eke), ịnweta ntụ ntụ na bitumen. A na-enweta ihe mejupụtara nke ikpeazụ nke mkpuchi ahụ site n'ịgbakọ n'ụzọ ziri ezi, na-ekiri ụfọdụ okpomọkụ na compaction site na iji usoro pụrụ iche.

Asphalt ihe ndabere - ihe nkedo enwetara site na ịgwakọta ntụ ntụ ịnweta na bitumen. Mgbe agwakọtara ájá na ihe dị otú ahụ, a na-enweta ngwakọta, nke a na-akpọ ngwọta asphalt.
Mmiri asphalt - Nke a bụ ngwá ọrụ dị mkpa maka ịchọpụta mgbawa na mkpuchi ma site n'enyemaka ya, ị nwere ike iwepụ crevices ngwa ngwa. https://xn--80aakhkbhgn2dnv0i.xn--p1ai/product/mastika-05. Iji mee ka ndụ ọrụ nke pavement asphalt dịkwuo ọtụtụ ugboro, Mastic 05 bụ ngwá ọrụ nwere ike iji ọbụna na-enweghị ahụmahụ pụrụ iche na nkà na-arụ ọrụ nke asphalt.

Enwere ọtụtụ ụdị ngwakọta asphalt. A na-amata ha site na okpomọkụ nke etinyere ihe mejupụtara ya, yana ogo viscosity nke bitumen. Ngwakọta ndị a na-ekpo ọkụ, ọkụ na oyi. N'okpuru ebe a, anyị ga-atụle ụkpụrụ nke ịtọgbọ na-eji ụdị asphalt dị iche iche.

1. A na-akwado ngwakọta asphalt na-ekpo ọkụ site na iji bitumen viscous. A na-edobe okpomọkụ nke nkwadebe nke ihe mejupụtara n'ime 140-160 Celsius C, ebe a na-etinye ya na okpomọkụ nke ihe dịka 120 Celsius C (ma ọ bụghị ihe na-erughị nke ahụ). A na-emepụta ihe owuwu ahụ n'oge usoro nchịkọta.

2. Ngwakọta nke ọkwa okpomọkụ nke ọkara (ọkụ), n'oge nkwadebe chọrọ okpomọkụ site na 90 ruo 130 Celsius. A na-eme ala na t = 50-80 Celsius. N'okwu a, usoro ahụ na-ewe ogologo oge iji mepụta - site na awa ole na ole ruo izu abụọ. Oge na-adabere n'ụdị bitumen eji.

3. Maka nkwadebe nke ụdị ngwakọta nke atọ - oyi, mmiri mmiri bitumen. A na-achọ usoro okpomọkụ ebe a naanị n'oge nkwadebe (ruo 120 Celsius C), ebe a na-etinye ya mgbe ngwakọta ahụ dị jụụ. E nwere, n'ezie, na nkà na ụzụ dị otú ahụ na mwepu - oge nke siri ike na nhazi nke nhazi nke ngwakọta na nke a bụ ogologo oge - site na ụbọchị 20 ruo otu ọnwa. Okwu a na-adaberekwa n'ụdị na ọsọ nke ịgbatị bitumen ahọpụtara, na njem njem, na ọnọdụ ihu igwe.

Ọzọkwa, ụdị nke asphalt ihe ngwakọta na-iche dabere na urughuru size nke siri ike, ịnweta akụkụ nke mejupụtara. Enwere ụrọ asphalt siri ike (nha nha - ruo 25 mm), ọka dị mma (ruo 15 mm) na aja (oke ọka - 5 mm).

Dabere na ihe mejupụtara na ụdị ntọala, a na-ekewa ụdị ngwakọta asphalt ndị a:

a) maka nkwadebe nke ihe mejupụtara asphalt dị ọkụ ma na-ekpo ọkụ:
• polygravel (ọdịnaya mkpọmkpọ ebe na ihe mejupụtara - 50-65%);
• nkume ndị na-agbaji agbaji (35-50% nkume egwepịara);
• obere gravel (20-35% gravel na ngwakọta);
• aja na ájá gbajiri agbaji, nha nha 1,25-5,00 mm;
• aja dabere na aja eke,
• nha nha - 1,25-5,00 mm;

b) maka nkwadebe nke oyi-ụdị asphalt concrete:
• nkume a gbajiri agbaji - akụkụ 5-15 ma ọ bụ 3-10 mm;
• obere gravel - akụkụ 5-15 ma ọ bụ 3-10 mm;
• aja, nke nwere oke nha nke 1,25-5,00 mm;

A na-emekarị akwa akwa asphalt dị n'okpuru ala site na mgbako nke pasent 50-70 nke nkume a gbajiri agbaji. Ọzọkwa, ụdị ngwakọta asphalt na-adabere n'usoro nchikota nke etinyere na oyi akwa pavement. A na-enwe ihe nkedo nkedo, nke a kpụrụ akpụ, akpọrepu na ịma jijiji (jiri efere na-ama jijiji gbakọrọ).