Kuat Tekan Beton Dengan Penambahan Superplasticizer 0,25% dan Air Entraining Admixture 0.01%, 0.10%, 0.15% Menggunakan Mix Design Beton Mutu fc’ 25MPa.

Compressive Strength of Concrete With the Addition of 0.25% Superplasticizer and 0.01%, 0.10%, 0.15% Air Entraining Admixture Using Mix Design Concrete Quality fc' 25MPa.

ABSTRAK

Tulisan ini bertujuan untuk mengetahui kuat tekan beton silinder dengan rancang campur mutu fc’ 25Mpa dengan tambahan Air Entraining Addmixture untuk mengetahui pengaruh bahan tambah tersebuat terhadap kuat tekan beton. Berdasarkan brosur Air Entraining, bahan tambah ini bersifat polimer yang larut dalam air yang befungsi untuk meningkatkan mengurangi berat beton dan mengurangi pemakaian semen dalam campuran.Uji coba campuran beton dibagi dalam tiga perlakuan/ tiga komposisi yaitu dengan dosis Air Entraining masing-masing 0,01%, 0,1%, dan 0,15% dari berat semen. Komposisi bahan campuran beton di tiap mix design tersusun atas 18,48 kg semen, 42,7 kg agregat halus, 22,14 kg agregat kasar ukuran 5-12 mm, 41,10 kg agregat kasar ukuran 10-20 mm, air 5,98 kg.Hasil uji kuat tekan pada beton silinder dengan bahan tambah Air Entraining sejumlah 0,15% pada umur 28 hari sebesar 17,00 MPa. Kuat tekan beton silinder dengan bahan tambah Air Entraining sejumlah 0,10% pada umur 28 hari sebesar 18,75 MPa. Selanjutnya untuk kuat tekan beton silinder dengan bahan tambah Air Entraining sejumlah 0.01% pada umur 28 hari sebesar 26,10 MPa.

Kata kunci : bahan tambah Air Entraining Addmixture, kuat tekan, Beton.

ABSTRACT

This paper aims to determine the compressive strength of cylindrical concrete with mixed quality design fc’ 25Mpa with extra Air Entraining Addmixture to determine the effect of the added material on the compressive strength of concrete. Based on brochure Air Entraining, this additive is in nature polymer which dissolves in water which functions to increase the weight of the concrete and reduce the use of cement in the mixture. The concrete mix trials were divided into three treatments/three compositions, namely with Air Entraining 0.01%, 0.1% and 0.15% respectively by weight of cement. The composition of the concrete mixture in each mix design composed of 18.48 kg of cement, 42.7 kg of fine aggregate, 22.14 kg of coarse aggregate of 5-12 mm size, 41.10 kg of coarse aggregate of 10-20 mm size, 5.98 kg of water. Compressive strength test results on cylindrical concrete with added materials Air Entraining 0.15% at 28 days of age of 17.00 MPa. Compressive strength of cylindrical concrete with additives Air Entraining 0.10% at 28 days of age of 18.75 MPa. Furthermore, for the compressive strength of cylindrical concrete with added materials Air Entraining 0.01% at 28 days of age of 26.10 MPa.

Keywords: additives, compressive strength, Air Entraining Addmixture