KUAT TEKAN BETON MUTU f’c 30
DENGAN SUPERPLASTICIZER DAN AIR ENTRAINING AGENT
PRESSIVE STRENGTH OF QUALITY CONCRETE f'c 30 WITH SUPERPLASTICIZER AND AIR ENTRAINING AGENT
Superplasticizer merupakan bahan tambah Admixture yang dicampurkan kedalam campuran beton dan telah terbukti meningkatkan kinerja beton. Air Entraining Agent adalah bahan tambah campuran berupa Surfaktan yang menciptakan gelembung udara sangat halus dengan diameter 1/100mm2mm, dapat memperbaiki sifat beton karena gelembung udara berfungsi sebagai minyak pelumas. Air Entraining Agent meningkatkan titik tegangan luluh, kemampuan membangun, kemampuan cetak beton 3D secara keseluruhan dibandingkan campuran sama yang tidak mengandung Air Entraining Agent. Metode Pengujian dan Eksperimen pada penelitian ini dilakukan dengan cara membuat sampel benda uji dan pengujian beton di laboratorium bahan PT Solusi Bangun Beton Indonesia. Jumlah Benda uji yang digunakan adalah 8 benda uji, berupa beton silinder dengan komposisi masing-masing yang nantinya diuji tiap 28. Selain itu data-data studi dari SNI maupun standar asing seperti ASTM juga dapat dipelajari. Hasil pengujian kuat tekan beton normal silinder beton mutu f’c 30 MPa rata-rata berat 12,325 kg dan rata-rata kuat tekan 41,25. Hasil pengujian kuat tekan beton dengan penambahan Superplasticizer 0,4% Dan Air Entraining Agent 0,02% silinder beton mutu f’c 30 MPa rata-rata berat 12,265 kg, dan rata-rata kuat tekan 31,90. Hasil pengujian kuat tekan beton dengan penambahan Superplasticizer 0,4% Dan Air Entraining Agent 0,007% silinder beton mutu f’c 30 MPa rata-rata berat 11,625 kg, dan rata-rata kuat tekan 28,50. Hasil pengujian kuat tekan beton dengan penambahan Superplasticizer 0,4% Dan Air Entraining Agent 0,011% silinder beton mutu f’c 30 MPa rata-rata berat 11,415 kg, dan rata-rata kuat tekan 27,30.
Superplasticizer is an admixture added material that is mixed into the concrete mix and has been proven to improve concrete performance. Air Entraining Agent is a mixed additive in the form of a surfactant which creates very fine air bubbles with a diameter of 1/100mm2mm, which can improve the properties of concrete because the air bubbles function as lubricating oil. Air Entraining Agent increases the yield stress point, buildability, overall 3D printability of concrete compared to the same mix that does not contain Air Entraining Agent. Testing and Experiment Methods in this study were carried out by making samples of test objects and testing concrete in the materials laboratory of PT Solusi Bangun Beton Indonesia. The number of test objects used is 8 test objects, in the form of cylindrical concrete with their respective compositions which will be tested every 28. In addition, study data from SNI and foreign standards such as ASTM can also be studied. Test results of normal concrete compressive strength of quality concrete cylindersf’c 30 MPa has an average weight of 12.325 kg and an average compressive strength of 41.25. The results of testing the compressive strength of concrete with the addition Superplasticizer0.4% And Air Entraining Agent 0.02% quality concrete cylinderf’c 30 MPa has an average weight of 12.265 kg, and an average compressive strength of 31.90. The results of testing the compressive strength of concrete with the addition Superplasticizer0.4% And Air Entraining Agent 0.007% quality concrete cylinderf’c 30 MPa has an average weight of 11.625 kg, and an average compressive strength of 28.50. The results of testing the compressive strength of concrete with the addition Superplasticizer0.4% And Air Entraining Agent 0.011% quality concrete cylinderf’c 30 MPa has an average weight of 11.415 kg, and an average compressive strength of 27.30.