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All Journal Rekayasa Teknik Sipil Jurnal SOLMA
KURNIAWATI, ANDINI
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Civil Engineering, Building, Construction & Architecture Other

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PENGARUH VARIASI WATER BINDER RATIO (0,20-0,32) TERHADAP SIFAT SEGAR, BERAT VOLUME, POROSITAS, DAN KUAT TEKAN PADA BETON HIGH VOLUME FLY ASH METODE SELF COMPACTING CONCRETE KURNIAWATI, ANDINI; FIRMANSYAH SOFIANTO, MOCHAMAD
Rekayasa Teknik Sipil Vol 3, No 1 (2019)
Publisher : Rekayasa Teknik Sipil

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Abstract

Durabilitas merupakan salah satu permasalahan dalam pekerjaan teknis beton yang diakibatkan oleh pemadatan yang kurang optimal, sehingga dibutuhkan beton yang mampu memadat sendiri. Karakteristik beton yang memadat sendiri adalah volume binder lebih banyak daripada beton normal, sehingga nilai w/b ratio menjadi kecil. HVFA digunakan untuk mengurangi dampak lingkungan yang diakibatkan penggunaan volume binder yang besar. Tujuan penelitian ini adalah mengetahui pengaruh w/b ratio terhadap sifat segar, berat per-volume, porositas, dan kuat tekan beton. Penelitian ini direncanakan menggunakan variasi w/b ratio 0,20; 0,24; 0,28; 0,32 dan kadar HVFA 50% dari volume binder. Pengujian benda uji menggunakan silinder dengan ukuran 10x20 cm. Uji beton segar yang dilakukan adalah Uji Slump, Uji T50, Uji V-funnel, dan Uji L-Box. Uji kuat tekan pada umur 7, 14, dan 28 hari. Hasil penelitian menunjukkan adanya pengaruh w/b ratio terhadap beton segar dan memenuhi persyaratan sifat segar SCC. Berat per volume sebagian besar beton tegolong dalam jenis beton berat dengan nilai terberat adalah 2451,59 kg/m3. Pengaruh w/b ratio terhadap porositas ditunjukkan bahwa nilai w/b ratio yang terendah memiliki nilai porositas juga kecil, nilai Porositas terkecil yaitu 1,27%. Kuat tekan yang paling besar terdapat pada beton w/b ratio 0,20 dengan nilai 44,59 MPa. Kata kunci : w/b ratio; Sifat Segar, Kuat Tekan, Berat Per Volume, dan Porositas.
Guru Cermat, Anak Hebat: Peningkatan Kapasitas Guru PAUD melalui Pelatihan Skrining Tumbuh Kembang di TK Muslimat NU 27 Malang Iftitahurroza, Hilma Tsurayya; Widya Sishartami, Lintang; Ariesaka, Kiky Martha; Weningtyas, Anditri; Kurniawati, Andini; Qurrataa'ayun, Ahmad Al; Aulia, Sabrina; Auliarahama, Zhafirah; Manggolono, Lintang Nirmalasari Gemalochaya
Jurnal SOLMA Vol. 14 No. 3 (2025)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v14i3.20867

Abstract

Background: Early childhood is a golden period of growth and development that serves as the foundation for the quality of human resources in the future. Developmental screening in early childhood is crucial to detect growth and developmental disorders at an early stage. Early Childhood Education (ECE) teachers play a strategic role in conducting screenings within educational institutions. However, limited teacher capacity in performing developmental screenings often becomes a challenge. Methods: The program was conducted using a training approach designed based on the ADDIE model. The effectiveness of the training was evaluated by comparing the participants’ pre-test and post-test scores. Results: The activity was implemented at TK Muslimat NU 27 Malang and was attended by 12 participants, all of whom were PAUD teachers. The results showed a significant improvement in teachers’ knowledge and skills based on pre-test and post-test outcomes, as well as increased confidence in conducting growth and development screening in schools. Conclusion: This activity improved teachers’ capacity in children growth and development screening; however, further monitoring and evaluation of implementation are needed.
Co-Authors Anditri Weningtyas Aulia, Sabrina Auliarahama, Zhafirah FIRMANSYAH SOFIANTO, MOCHAMAD Iftitahurroza, Hilma Tsurayya Kiky Martha Ariesaka Manggolono, Lintang Nirmalasari Gemalochaya Qurrataa'ayun, Ahmad Al Widya Sishartami, Lintang